Plastite Screws | McMaster-Carr

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788 Products

About Tapping Screws

Compare drilling, pointed, thread-forming, and thread-cutting tips to find the best choice for your material.

Fastener Head Type

Rounded

The most common head type creates a finished look

506 products

Hex

For high-torque fastening with a nutdriver or socket

38 products

Fastener Head Type

Flat

Sit neatly in countersunk holes for a flush finish

244 products

Flanged

Distribute pressure evenly to prevent damaging material

38 products

Stainless Steel Phillips Rounded Head Thread-Forming Screws for Plastic


	Round Shank Cross Section	Tri-Lobe Shank Cross Section

Our most popular thread-forming screws for plastic also resist rust. Thread them directly into molded or cast holes—no inserts needed. Screws won’t crack or distort material when fastening enclosures, panels, and other plastic components. The Phillips drive handles enough torque to keep drivers from slipping and the rounded head creates a finished look.

Length is measured from under the head.

18-8 Stainless Steel—The choice for wet and outdoor environments, these screws resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.

Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these screws withstand harsh weather, salt water, and most chemicals.

Tri-Lobe—The tri-lobular shank forms threads in thermoplastics such as polypropylene and ABS. These screws displace material to create a tight fit that resists vibration and prevents backing out. Because the shank isn't round, the diameter will vary slightly depending on where you measure it. They're comparable to Plastite screws.

Round—The sharply angled threads drive into plastic with less force and a lower risk of cracking than other tapping screws. The base of the threads is recessed to bite deep into material and hold tight. You can reuse these screws a few times without stripping the threads. They're comparable to PT screws.

		Head
	Lg.	Dia.	Ht.	Tapping Screw Type	Drive Size	Approx. Threads per In.	Drill Bit Size	Shank Cross Section	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				No. 0 Screw Size

				1/8"	0.116"	0.044"	TRS	No. 0	42	56 Ga.	Tri-Lobe	50	99461A505	000000


				3/16"	0.116"	0.044"	TRS	No. 0	42	56 Ga.	Tri-Lobe	50	99461A510	00000
				1/4"	0.116"	0.044"	TRS	No. 0	42	56 Ga.	Tri-Lobe	50	99461A515	00000
				3/8"	0.116"	0.044"	TRS	No. 0	42	56 Ga.	Tri-Lobe	50	99461A520	00000
				1/2"	0.116"	0.044"	TRS	No. 0	42	56 Ga.	Tri-Lobe	50	99461A530	00000




						No. 1 Screw Size

						1/8"	0.142"	0.053"	TRS	No. 0	32	53 Ga.	Tri-Lobe	50	99461A605	00000


						1/4"	0.142"	0.053"	TRS	No. 0	32	53 Ga.	Tri-Lobe	50	99461A615	00000
						3/8"	0.142"	0.053"	TRS	No. 0	32	53 Ga.	Tri-Lobe	50	99461A620	00000
						1/2"	0.142"	0.053"	TRS	No. 0	32	53 Ga.	Tri-Lobe	50	99461A630	00000




								No. 2 Screw Size

								3/16"	0.167"	0.062"	TRS	No. 1	28	48 Ga.	Tri-Lobe	50	99461A710	00000


								1/4"	0.167"	0.062"	TRS	No. 1	28	48 Ga.	Tri-Lobe	50	99461A715	00000
								5/16"	0.167"	0.062"	TRS	No. 1	28	48 Ga.	Tri-Lobe	50	99461A720	00000
								3/8"	0.167"	0.062"	TRS	No. 1	28	48 Ga.	Tri-Lobe	50	99461A725	00000
								1/2"	0.167"	0.062"	TRS	No. 1	28	48 Ga.	Tri-Lobe	50	99461A735	00000
								5/8"	0.167"	0.062"	TRS	No. 1	28	48 Ga.	Tri-Lobe	50	99461A201	00000
								3/4"	0.167"	0.062"	TRS	No. 1	28	48 Ga.	Tri-Lobe	50	99461A202	00000




										No. 3 Screw Size

										3/16"	0.193"	0.071"	TRS	No. 1	24	46 Ga.	Tri-Lobe	50	99461A203	00000


										1/4"	0.193"	0.071"	TRS	No. 1	24	46 Ga.	Tri-Lobe	50	99461A815	00000
										5/16"	0.193"	0.071"	TRS	No. 1	24	46 Ga.	Tri-Lobe	50	99461A204	00000
										3/8"	0.193"	0.071"	TRS	No. 1	24	46 Ga.	Tri-Lobe	50	99461A825	00000
										1/2"	0.193"	0.071"	TRS	No. 1	24	46 Ga.	Tri-Lobe	50	99461A205	00000




												No. 4 Screw Size

												1/8"	0.219"	0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	50	99461A105	00000


3/16"	0.219"											0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	50	99461A206	00000
1/4"	0.219"											0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	50	99461A110	00000
5/16"	0.219"											0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	50	99461A207	00000
3/8"	0.219"											0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	50	99461A120	00000
1/2"	0.219"	0.08"										TRS	No. 1	20	37 Ga.	Tri-Lobe	50	99461A130	00000
5/8"	0.219"	0.08"	TRS									No. 1	20	37 Ga.	Tri-Lobe	50	99461A140	00000
3/4"	0.219"	0.08"	TRS									No. 1	20	37 Ga.	Tri-Lobe	50	99461A150	00000
1"	0.219"	0.08"	TRS									No. 1	20	37 Ga.	Tri-Lobe	25	99461A208	0000
1 1/4"	0.219"	0.08"	TRS									No. 1	20	37 Ga.	Tri-Lobe	25	99461A209	0000




		No. 6 Screw Size

		3/16"	0.27"									0.097"	TRS	No. 2	19	32 Ga.	Tri-Lobe	25	99461A211	0000


		1/4"	0.27"	0.097"								TRS	No. 2	19	32 Ga.	Tri-Lobe	50	99461A220	00000
		5/16"	0.27"	0.097"	TRS							No. 2	19	32 Ga.	Tri-Lobe	50	99461A212	00000
		3/8"	0.27"	0.097"	TRS							No. 2	19	32 Ga.	Tri-Lobe	25	99461A230	00000
		1/2"	0.27"	0.097"	TRS							No. 2	19	32 Ga.	Tri-Lobe	25	99461A240	00000
		5/8"	0.27"	0.097"	TRS							No. 2	19	32 Ga.	Tri-Lobe	25	99461A250	00000
		3/4"	0.27"	0.097"	TRS							No. 2	19	32 Ga.	Tri-Lobe	25	99461A260	00000




				No. 8 Screw Size

				1/4"	0.322"							0.115"	TRS	No. 2	16	29 Ga.	Tri-Lobe	25	99461A330	00000


				3/8"	0.322"	0.115"	TRS					No. 2	16	29 Ga.	Tri-Lobe	25	99461A340	00000
				1/2"	0.322"	0.115"	TRS					No. 2	16	29 Ga.	Tri-Lobe	25	99461A350	00000
				5/8"	0.322"	0.115"	TRS					No. 2	16	29 Ga.	Tri-Lobe	25	99461A360	00000
				3/4"	0.322"	0.115"	TRS					No. 2	16	29 Ga.	Tri-Lobe	25	99461A370	00000
				7/8"	0.322"	0.115"	TRS					No. 2	16	29 Ga.	Tri-Lobe	25	99461A380	00000
				1"	0.322"	0.115"	TRS					No. 2	16	29 Ga.	Tri-Lobe	25	99461A390	00000
				1 1/2"	0.322"	0.115"	TRS					No. 2	16	29 Ga.	Tri-Lobe	10	99461A213	0000




						No. 10 Screw Size

						1/4"	0.373"					0.133"	TRS	No. 2	14	21 Ga.	Tri-Lobe	25	99461A214	0000


						5/16"	0.373"	0.133"	TRS			No. 2	14	21 Ga.	Tri-Lobe	25	99461A215	00000
						3/8"	0.373"	0.133"	TRS			No. 2	14	21 Ga.	Tri-Lobe	25	99461A440	00000
						1/2"	0.373"	0.133"	TRS			No. 2	14	21 Ga.	Tri-Lobe	25	99461A450	00000
						3/4"	0.373"	0.133"	TRS			No. 2	14	21 Ga.	Tri-Lobe	25	99461A460	00000
						7/8"	0.373"	0.133"	TRS			No. 2	14	21 Ga.	Tri-Lobe	25	99461A470	00000
						1"	0.373"	0.133"	TRS			No. 2	14	21 Ga.	Tri-Lobe	25	99461A480	00000




								1/4" Screw Size

								1/2"	0.492"	0.175"		TRS	No. 3	10	4 Ga.	Tri-Lobe	10	99461A216	00000


								3/4"	0.492"	0.175"	TRS	No. 3	10	4 Ga.	Tri-Lobe	5	99461A217	0000
								1"	0.492"	0.175"	TRS	No. 3	10	4 Ga.	Tri-Lobe	5	99461A218	0000
								1 1/4"	0.492"	0.175"	TRS	No. 3	10	4 Ga.	Tri-Lobe	5	99461A219	0000
								1 1/2"	0.492"	0.175"	TRS	No. 3	10	4 Ga.	Tri-Lobe	5	99461A221	0000




										M1.6 Screw Size

										5 mm	2.6 mm	1.1 mm	TRS	No. 0	—	55 Ga.	Round	25	99461A911	0000


6 mm	2.6 mm									1.1 mm	TRS	No. 0	—	55 Ga.	Round	25	99461A912	0000
8 mm	2.6 mm									1.1 mm	TRS	No. 0	—	55 Ga.	Round	25	99461A913	0000




										M2 Screw Size

										5 mm	3.5 mm	1.4 mm	TRS	No. 1	—	52 Ga.	Round	25	99461A914	0000


										6 mm	3.5 mm	1.4 mm	TRS	No. 1	—	52 Ga.	Round	25	99461A915	0000
										8 mm	3.5 mm	1.4 mm	TRS	No. 1	—	52 Ga.	Round	25	99461A916	0000
		10 mm								3.5 mm	1.4 mm	TRS	No. 1	—	52 Ga.	Round	25	99461A917	0000




										M2.2 Screw Size

										4 mm	3.9 mm	1.6 mm	TRS	No. 1	—	50 Ga.	Round	50	99461A918	0000


										5 mm	3.9 mm	1.6 mm	TRS	No. 1	—	50 Ga.	Round	100	99461A919	00000
										6 mm	3.9 mm	1.6 mm	TRS	No. 1	—	50 Ga.	Round	100	99461A921	00000
										8 mm	3.9 mm	1.6 mm	TRS	No. 1	—	50 Ga.	Round	50	99461A922	0000
										10 mm	3.9 mm	1.6 mm	TRS	No. 1	—	50 Ga.	Round	100	99461A923	00000
										12 mm	3.9 mm	1.6 mm	TRS	No. 1	—	50 Ga.	Round	100	99461A924	00000
										14 mm	3.9 mm	1.6 mm	TRS	No. 1	—	50 Ga.	Round	100	99461A925	00000
				16 mm						3.9 mm	1.6 mm	TRS	No. 1	—	50 Ga.	Round	100	99461A926	00000
				18 mm	3.9 mm					1.6 mm	TRS	No. 1	—	50 Ga.	Round	50	99461A927	00000




										M2.5 Screw Size

										5 mm	4.4 mm	1.8 mm	TRS	No. 1	—	45 Ga.	Round	100	99461A928	00000


										6 mm	4.4 mm	1.8 mm	TRS	No. 1	—	45 Ga.	Round	100	99461A929	00000
										8 mm	4.4 mm	1.8 mm	TRS	No. 1	—	45 Ga.	Round	100	99461A931	00000
										10 mm	4.4 mm	1.8 mm	TRS	No. 1	—	45 Ga.	Round	50	99461A932	0000
										12 mm	4.4 mm	1.8 mm	TRS	No. 1	—	45 Ga.	Round	50	99461A933	0000
						14 mm				4.4 mm	1.8 mm	TRS	No. 1	—	45 Ga.	Round	50	99461A934	0000
						16 mm	4.4 mm			1.8 mm	TRS	No. 1	—	45 Ga.	Round	50	99461A935	0000
						18 mm	4.4 mm			1.8 mm	TRS	No. 1	—	45 Ga.	Round	50	99461A936	0000
						20 mm	4.4 mm			1.8 mm	TRS	No. 1	—	45 Ga.	Round	50	99461A937	00000




										M3 Screw Size

										5 mm	5.3 mm	2.1 mm	TRS	No. 1	—	41 Ga.	Round	50	99461A938	0000


								6 mm		5.3 mm	2.1 mm	TRS	No. 1	—	41 Ga.	Round	100	99461A939	00000
								8 mm	5.3 mm	2.1 mm	TRS	No. 1	—	41 Ga.	Round	50	99461A941	0000
								10 mm	5.3 mm	2.1 mm	TRS	No. 1	—	41 Ga.	Round	50	99461A942	0000
								12 mm	5.3 mm	2.1 mm	TRS	No. 1	—	41 Ga.	Round	50	99461A943	0000
								14 mm	5.3 mm	2.1 mm	TRS	No. 1	—	41 Ga.	Round	50	99461A944	0000
								16 mm	5.3 mm	2.1 mm	TRS	No. 1	—	41 Ga.	Round	50	99461A945	0000
								18 mm	5.3 mm	2.1 mm	TRS	No. 1	—	41 Ga.	Round	50	99461A946	00000
								20 mm	5.3 mm	2.1 mm	TRS	No. 1	—	41 Ga.	Round	50	99461A947	00000
								25 mm	5.3 mm	2.1 mm	TRS	No. 1	—	41 Ga.	Round	50	99461A948	00000
								30 mm	5.3 mm	2.1 mm	TRS	No. 1	—	41 Ga.	Round	50	99461A949	00000




								M3.5 Screw Size

								8 mm	6.1 mm	2.6 mm	TRS	No. 1	—	34 Ga.	Round	50	99461A951	0000


								10 mm	6.1 mm	2.6 mm	TRS	No. 1	—	34 Ga.	Round	50	99461A952	0000
								12 mm	6.1 mm	2.6 mm	TRS	No. 1	—	34 Ga.	Round	50	99461A953	0000
								14 mm	6.1 mm	2.6 mm	TRS	No. 1	—	34 Ga.	Round	50	99461A954	0000
								16 mm	6.1 mm	2.6 mm	TRS	No. 1	—	34 Ga.	Round	50	99461A955	00000
		18 mm						6.1 mm	2.6 mm	TRS	No. 1	—	34 Ga.	Round	50	99461A956	00000
		20 mm	6.1 mm					2.6 mm	TRS	No. 1	—	34 Ga.	Round	50	99461A957	00000
		25 mm	6.1 mm					2.6 mm	TRS	No. 1	—	34 Ga.	Round	50	99461A958	00000
		30 mm	6.1 mm					2.6 mm	TRS	No. 1	—	34 Ga.	Round	25	99461A959	0000
		35 mm	6.1 mm					2.6 mm	TRS	No. 1	—	34 Ga.	Round	25	99461A961	0000




								M4 Screw Size

								5 mm	7 mm	2.8 mm	TRS	No. 1	—	30 Ga.	Round	25	99461A962	0000


								6 mm	7 mm	2.8 mm	TRS	No. 1	—	30 Ga.	Round	25	99461A963	0000
								8 mm	7 mm	2.8 mm	TRS	No. 1	—	30 Ga.	Round	50	99461A964	0000
								10 mm	7 mm	2.8 mm	TRS	No. 1	—	30 Ga.	Round	50	99461A965	0000
				12 mm				7 mm	2.8 mm	TRS	No. 1	—	30 Ga.	Round	50	99461A966	00000
				14 mm	7 mm			2.8 mm	TRS	No. 1	—	30 Ga.	Round	50	99461A967	00000
				16 mm	7 mm			2.8 mm	TRS	No. 1	—	30 Ga.	Round	50	99461A968	00000
				18 mm	7 mm			2.8 mm	TRS	No. 1	—	30 Ga.	Round	50	99461A969	00000
				20 mm	7 mm			2.8 mm	TRS	No. 1	—	30 Ga.	Round	25	99461A971	0000
				25 mm	7 mm			2.8 mm	TRS	No. 1	—	30 Ga.	Round	25	99461A972	0000
				30 mm	7 mm			2.8 mm	TRS	No. 1	—	30 Ga.	Round	25	99461A973	0000


				35 mm	7 mm			2.8 mm	TRS	No. 1	—	30 Ga.	Round	25	99461A974	00000
				40 mm	7 mm			2.8 mm	TRS	No. 1	—	30 Ga.	Round	10	99461A975	0000




								M5 Screw Size

						8 mm		8.8 mm	3.32 mm	TRS	No. 2	—	21 Ga.	Round	25	99461A976	00000


						10 mm	8.8 mm	3.32 mm	TRS	No. 2	—	21 Ga.	Round	25	99461A977	00000
						12 mm	8.8 mm	3.32 mm	TRS	No. 2	—	21 Ga.	Round	25	99461A978	00000
						14 mm	8.8 mm	3.32 mm	TRS	No. 2	—	21 Ga.	Round	25	99461A979	00000
						16 mm	8.8 mm	3.32 mm	TRS	No. 2	—	21 Ga.	Round	10	99461A981	0000
						18 mm	8.8 mm	3.32 mm	TRS	No. 2	—	21 Ga.	Round	10	99461A982	0000
						20 mm	8.8 mm	3.32 mm	TRS	No. 2	—	21 Ga.	Round	10	99461A983	0000
						25 mm	8.8 mm	3.32 mm	TRS	No. 2	—	21 Ga.	Round	10	99461A984	0000
						30 mm	8.8 mm	3.32 mm	TRS	No. 2	—	21 Ga.	Round	10	99461A985	0000


						Highly Corrosion-Resistant 316 Stainless Steel







								No. 2 Screw Size

								3/16"	0.167"	0.062"	TRS	No. 1	28	48 Ga.	Tri-Lobe	25	99461A171	00000


								1/4"	0.167"	0.062"	TRS	No. 1	28	48 Ga.	Tri-Lobe	25	99461A173	00000
								3/8"	0.167"	0.062"	TRS	No. 1	28	48 Ga.	Tri-Lobe	25	99461A175	00000
								1/2"	0.167"	0.062"	TRS	No. 1	28	48 Ga.	Tri-Lobe	25	99461A177	00000




										No. 4 Screw Size

										1/4"	0.219"	0.08"	TRS	No. 1	20	44 Ga.	Tri-Lobe	25	99461A282	00000


		3/8"	0.219"							0.08"	TRS	No. 1	20	44 Ga.	Tri-Lobe	25	99461A284	00000
		1/2"	0.219"							0.08"	TRS	No. 1	20	44 Ga.	Tri-Lobe	25	99461A286	00000




										No. 6 Screw Size

										3/8"	0.27"	0.097"	TRS	No. 2	19	32 Ga.	Tri-Lobe	25	99461A310	00000


										1/2"	0.27"	0.097"	TRS	No. 2	19	32 Ga.	Tri-Lobe	25	99461A312	00000
										3/4"	0.27"	0.097"	TRS	No. 2	19	32 Ga.	Tri-Lobe	25	99461A315	00000




												No. 8 Screw Size

												3/8"	0.322"	0.115"	TRS	No. 2	16	29 Ga.	Tri-Lobe	25	99461A405	00000


				1/2"								0.322"	0.115"	TRS	No. 2	16	29 Ga.	Tri-Lobe	25	99461A409	00000
				3/4"	0.322"							0.115"	TRS	No. 2	16	29 Ga.	Tri-Lobe	25	99461A412	00000
				1"	0.322"							0.115"	TRS	No. 2	16	29 Ga.	Tri-Lobe	25	99461A416	00000




												No. 10 Screw Size

												1/2"	0.373"	0.133"	TRS	No. 2	14	21 Ga.	Tri-Lobe	10	99461A573	00000


												3/4"	0.373"	0.133"	TRS	No. 2	14	21 Ga.	Tri-Lobe	10	99461A576	00000
												1"	0.373"	0.133"	TRS	No. 2	14	21 Ga.	Tri-Lobe	10	99461A579	00000

Steel Torx Rounded Head Thread-Forming Screws for Plastic


	Tri-Lobe Shank Cross Section

Thread these screws into plastic without installing an insert or stripping the drive. Also known as star drive screws, these withstand more torque than screws with a slotted, Phillips, square, or hex drive. They press threads into molded or cast holes and won’t crack or distort the material. Use them to fasten plastic components, enclosures, and panels, and their rounded head creates a finished look.

Length is measured from under the head.

Black-Oxide Steel—Typically chosen for their appearance, these screws have a dark, matte coating for a finished look. They offer minimal corrosion resistance, so they're best for dry environments.

Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.

		Head
	Lg.	Dia.	Ht.	Tapping Screw Type	Drive Size	Approx. Threads per In.	Drill Bit Size	Shank Cross Section	Pkg. Qty.		Pkg.
Black-Oxide Steel







				No. 2 Screw Size

				1/4"	0.167"	0.062"	TRS	T8	28	5/64"	Tri-Lobe	100	99512A652	00000


				3/8"	0.167"	0.062"	TRS	T8	28	5/64"	Tri-Lobe	50	99512A653	0000
				1/2"	0.167"	0.062"	TRS	T8	28	5/64"	Tri-Lobe	50	99512A654	0000




						No. 4 Screw Size

						1/4"	0.219"	0.08"	TRS	T10	20	37 Ga.	Tri-Lobe	100	99512A655	00000


						5/16"	0.219"	0.08"	TRS	T10	20	37 Ga.	Tri-Lobe	50	99512A656	0000
						3/8"	0.219"	0.08"	TRS	T10	20	37 Ga.	Tri-Lobe	50	99512A657	0000
						1/2"	0.219"	0.08"	TRS	T10	20	37 Ga.	Tri-Lobe	50	99512A658	0000
						5/8"	0.219"	0.08"	TRS	T10	20	37 Ga.	Tri-Lobe	100	99512A659	0000
						3/4"	0.219"	0.08"	TRS	T10	20	37 Ga.	Tri-Lobe	50	99512A661	0000
						1"	0.219"	0.08"	TRS	T10	20	37 Ga.	Tri-Lobe	50	99512A662	0000
						1 1/4"	0.219"	0.08"	TRS	T10	20	37 Ga.	Tri-Lobe	100	99512A663	0000




								No. 6 Screw Size

								1/4"	0.27"	0.097"	TRS	T15	19	1/8"	Tri-Lobe	50	99512A664	0000


								3/8"	0.27"	0.097"	TRS	T15	19	1/8"	Tri-Lobe	100	99512A665	0000
								1/2"	0.27"	0.097"	TRS	T15	19	1/8"	Tri-Lobe	50	99512A666	0000
								3/4"	0.27"	0.097"	TRS	T15	19	1/8"	Tri-Lobe	100	99512A667	00000
								1"	0.27"	0.097"	TRS	T15	19	1/8"	Tri-Lobe	50	99512A668	0000




										No. 8 Screw Size

										3/8"	0.322"	0.115"	TRS	T20	16	23 Ga.	Tri-Lobe	100	99512A669	00000


										1/2"	0.322"	0.115"	TRS	T20	16	23 Ga.	Tri-Lobe	50	99512A671	0000
										3/4"	0.322"	0.115"	TRS	T20	16	23 Ga.	Tri-Lobe	50	99512A672	0000




												No. 10 Screw Size

												1/2"	0.373"	0.133"	TRS	T25	14	15 Ga.	Tri-Lobe	50	99512A673	0000


												3/4"	0.373"	0.133"	TRS	T25	14	15 Ga.	Tri-Lobe	50	99512A674	00000
1"												0.373"	0.133"	TRS	T25	14	15 Ga.	Tri-Lobe	50	99512A675	00000




		1/4" Screw Size

		1/2"	0.492"									0.175"	TRS	T30	10	A	Tri-Lobe	25	99512A676	00000


		3/4"	0.492"									0.175"	TRS	T30	10	A	Tri-Lobe	10	99512A677	0000


		Zinc-Plated Steel







												No. 2 Screw Size

												3/16"	0.167"	0.062"	TRS	T8	28	5/64"	Tri-Lobe	100	99512A611	00000


												5/16"	0.167"	0.062"	TRS	T8	28	5/64"	Tri-Lobe	50	99512A612	0000
												5/8"	0.167"	0.062"	TRS	T8	28	5/64"	Tri-Lobe	50	99512A613	0000
												3/4"	0.167"	0.062"	TRS	T8	28	5/64"	Tri-Lobe	100	99512A614	00000




														No. 3 Screw Size

						1/4"	0.193"							0.071"	TRS	T8	24	43 Ga.	Tri-Lobe	100	99512A615	00000


						5/16"	0.193"							0.071"	TRS	T8	24	43 Ga.	Tri-Lobe	100	99512A616	00000
						3/8"	0.193"							0.071"	TRS	T8	24	43 Ga.	Tri-Lobe	100	99512A617	00000
						1/2"	0.193"							0.071"	TRS	T8	24	43 Ga.	Tri-Lobe	100	99512A618	0000




														No. 4 Screw Size

								3/16"						0.219"	0.08"	TRS	T10	20	37 Ga.	Tri-Lobe	100	99512A619	0000


								5/16"	0.219"					0.08"	TRS	T10	20	37 Ga.	Tri-Lobe	100	99512A621	00000
								7/8"	0.219"					0.08"	TRS	T10	20	37 Ga.	Tri-Lobe	100	99512A622	00000
								1"	0.219"					0.08"	TRS	T10	20	37 Ga.	Tri-Lobe	50	99512A623	0000
								1 1/4"	0.219"					0.08"	TRS	T10	20	37 Ga.	Tri-Lobe	50	99512A624	0000
								1 1/2"	0.219"					0.08"	TRS	T10	20	37 Ga.	Tri-Lobe	50	99512A625	00000




										No. 5 Screw Size

										1/4"	0.245"			0.089"	TRS	T10	20	32 Ga.	Tri-Lobe	100	99512A626	00000


										3/8"	0.245"			0.089"	TRS	T10	20	32 Ga.	Tri-Lobe	100	99512A627	0000
										1/2"	0.245"			0.089"	TRS	T10	20	32 Ga.	Tri-Lobe	100	99512A628	00000




										No. 6 Screw Size

										5/16"	0.27"			0.097"	TRS	T15	19	1/8"	Tri-Lobe	50	99512A629	0000


										1"	0.27"			0.097"	TRS	T15	19	1/8"	Tri-Lobe	100	99512A632	00000
										1 1/4"	0.27"			0.097"	TRS	T15	19	1/8"	Tri-Lobe	50	99512A633	0000
										1 1/2"	0.27"			0.097"	TRS	T15	19	1/8"	Tri-Lobe	50	99512A634	0000
		1 3/4"								0.27"	0.097"			TRS	T15	19	1/8"	Tri-Lobe	50	99512A635	00000
		2"	0.27"							0.097"	TRS			T15	19	1/8"	Tri-Lobe	50	99512A636	00000
		2 1/2"	0.27"							0.097"	TRS			T15	19	1/8"	Tri-Lobe	25	99512A637	0000




				No. 8 Screw Size

				3/8"	0.322"					0.115"	TRS			T20	16	23 Ga.	Tri-Lobe	100	99512A638	0000


				5/8"	0.322"					0.115"	TRS			T20	16	23 Ga.	Tri-Lobe	50	99512A639	0000
				1 1/4"	0.322"					0.115"	TRS			T20	16	23 Ga.	Tri-Lobe	50	99512A641	00000
				1 1/2"	0.322"					0.115"	TRS			T20	16	23 Ga.	Tri-Lobe	25	99512A642	0000
				2"	0.322"					0.115"	TRS			T20	16	23 Ga.	Tri-Lobe	25	99512A643	0000




										No. 10 Screw Size

										3/8"	0.373"	0.133"	TRS	T25	14	15 Ga.	Tri-Lobe	50	99512A644	0000


										5/8"	0.373"	0.133"	TRS	T25	14	15 Ga.	Tri-Lobe	50	99512A645	00000
										2"	0.373"	0.133"	TRS	T25	14	15 Ga.	Tri-Lobe	25	99512A646	00000




							No. 12 Screw Size

							1"				0.425"	0.151"	TRS	T27	11	7 Ga.	Tri-Lobe	25	99512A647	0000


							1 1/4"				0.425"	0.151"	TRS	T27	11	7 Ga.	Tri-Lobe	25	99512A648	0000
							1 1/2"				0.425"	0.151"	TRS	T27	11	7 Ga.	Tri-Lobe	10	99512A649	0000




												1/4" Screw Size

												2"	0.492"	0.175"	TRS	T30	10	A	Tri-Lobe	10	99512A651	0000

Steel Phillips Rounded Head Thread-Forming Screws for Plastic


	Tri-Lobe Shank Cross Section

Thread these screws into molded or cast holes in plastic without installing inserts. They won’t crack or distort material when fastening enclosures, panels, and other plastic components. The Phillips drive handles enough torque to keep drivers from slipping and the rounded head creates a finished look.

Length is measured from under the head.

Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.

Black-Zinc-Plated Steel—The dark finish withstands occasional exposure to moisture while creating a finished look.

		Head
	Lg.	Dia.	Ht.	Tapping Screw Type	Drive Size	Approx. Threads per In.	Drill Bit Size	Shank Cross Section	Pkg. Qty.		Pkg.
Black-Oxide Steel







				No. 2 Screw Size

				5/8"	0.167"	0.062"	TRS	No. 1	28	5/64"	Tri-Lobe	100	90417A111	00000


				3/4"	0.167"	0.062"	TRS	No. 1	28	5/64"	Tri-Lobe	100	90417A112	0000




						No. 3 Screw Size

						3/8"	0.193"	0.071"	TRS	No. 1	24	43 Ga.	Tri-Lobe	100	90417A113	0000


						3/4"	0.193"	0.071"	TRS	No. 1	24	43 Ga.	Tri-Lobe	100	90417A114	0000
						1"	0.193"	0.071"	TRS	No. 1	24	43 Ga.	Tri-Lobe	100	90417A115	0000




								No. 4 Screw Size

								1/4"	0.219"	0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	50	90417A116	0000


								5/16"	0.219"	0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	100	90417A117	0000
								3/8"	0.219"	0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	50	90417A118	0000
								1/2"	0.219"	0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	50	90417A119	0000
								5/8"	0.219"	0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	100	90417A121	0000
								3/4"	0.219"	0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	100	90417A122	0000




										No. 6 Screw Size

										1/4"	0.27"	0.097"	TRS	No. 2	19	1/8"	Tri-Lobe	100	90417A123	0000


										5/16"	0.27"	0.097"	TRS	No. 2	19	1/8"	Tri-Lobe	100	90417A124	0000
										3/8"	0.27"	0.097"	TRS	No. 2	19	1/8"	Tri-Lobe	50	90417A125	0000
										1/2"	0.27"	0.097"	TRS	No. 2	19	1/8"	Tri-Lobe	50	90417A126	0000
										5/8"	0.27"	0.097"	TRS	No. 2	19	1/8"	Tri-Lobe	50	90417A127	0000
										3/4"	0.27"	0.097"	TRS	No. 2	19	1/8"	Tri-Lobe	50	90417A128	0000
										1 1/8"	0.27"	0.097"	TRS	No. 2	19	1/8"	Tri-Lobe	50	90417A129	0000




												No. 8 Screw Size

												5/16"	0.322"	0.115"	TRS	No. 2	16	23 Ga.	Tri-Lobe	100	90417A131	0000


												3/8"	0.322"	0.115"	TRS	No. 2	16	23 Ga.	Tri-Lobe	50	90417A132	0000
												1/2"	0.322"	0.115"	TRS	No. 2	16	23 Ga.	Tri-Lobe	50	90417A133	0000
5/8"												0.322"	0.115"	TRS	No. 2	16	23 Ga.	Tri-Lobe	50	90417A134	0000
3/4"	0.322"											0.115"	TRS	No. 2	16	23 Ga.	Tri-Lobe	50	90417A135	0000
1"	0.322"											0.115"	TRS	No. 2	16	23 Ga.	Tri-Lobe	50	90417A136	0000
1 1/4"	0.322"											0.115"	TRS	No. 2	16	23 Ga.	Tri-Lobe	50	90417A137	00000




		No. 10 Screw Size

		1/2"	0.373"									0.133"	TRS	No. 2	14	15 Ga.	Tri-Lobe	50	90417A138	0000


		3/4"	0.373"									0.133"	TRS	No. 2	14	15 Ga.	Tri-Lobe	50	90417A139	00000
		1"	0.373"									0.133"	TRS	No. 2	14	15 Ga.	Tri-Lobe	25	90417A141	0000




				1/4" Screw Size

				3/4"	0.476"							0.169"	TRS	No. 3	10	A	Tri-Lobe	25	90417A143	0000


				Zinc-Plated Steel







												No. 2 Screw Size

												3/16"	0.167"	0.062"	TRS	No. 1	28	5/64"	Tri-Lobe	100	90380A261	0000


												1/4"	0.167"	0.062"	TRS	No. 1	28	47 Ga.	Tri-Lobe	50	90380A005	0000
												5/16"	0.167"	0.062"	TRS	No. 1	28	47 Ga.	Tri-Lobe	50	90380A008	0000
												3/8"	0.167"	0.062"	TRS	No. 1	28	47 Ga.	Tri-Lobe	50	90380A011	0000
												7/16"	0.167"	0.062"	TRS	No. 1	28	5/64"	Tri-Lobe	100	90380A262	0000
												1/2"	0.167"	0.062"	TRS	No. 1	28	47 Ga.	Tri-Lobe	50	90380A014	0000
												5/8"	0.167"	0.062"	TRS	No. 1	28	5/64"	Tri-Lobe	100	90380A263	00000




												No. 3 Screw Size

												3/16"	0.193"	0.071"	TRS	No. 1	24	43 Ga.	Tri-Lobe	50	90380A264	0000


												1/4"	0.193"	0.071"	TRS	No. 1	24	43 Ga.	Tri-Lobe	50	90380A265	0000
												5/16"	0.193"	0.071"	TRS	No. 1	24	43 Ga.	Tri-Lobe	50	90380A266	0000
												3/8"	0.193"	0.071"	TRS	No. 1	24	43 Ga.	Tri-Lobe	100	90380A267	0000
												1/2"	0.193"	0.071"	TRS	No. 1	24	43 Ga.	Tri-Lobe	50	90380A268	0000
												5/8"	0.193"	0.071"	TRS	No. 1	24	43 Ga.	Tri-Lobe	50	90380A269	0000
												3/4"	0.193"	0.071"	TRS	No. 1	24	43 Ga.	Tri-Lobe	100	90380A271	0000




												No. 4 Screw Size

												3/16"	0.219"	0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	50	90380A272	0000


												1/4"	0.219"	0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	100	90380A106	0000
												5/16"	0.219"	0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	50	90380A107	0000
												3/8"	0.219"	0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	100	90380A108	0000
7/16"												0.219"	0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	50	90380A273	0000
1/2"	0.219"											0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	100	90380A110	00000
5/8"	0.219"											0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	100	90380A115	00000
3/4"	0.219"											0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	100	90380A120	00000
7/8"	0.219"											0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	50	90380A274	0000
1"	0.219"											0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	50	90380A275	0000
1 1/8"	0.219"											0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	50	90380A276	0000


1 3/8"	0.219"											0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	50	90380A277	0000
1 1/2"	0.219"											0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	50	90380A278	0000




		No. 5 Screw Size

		1/4"	0.245"									0.089"	TRS	No. 2	20	33 Ga.	Tri-Lobe	50	90380A279	0000


		3/8"	0.245"	0.089"								TRS	No. 2	20	33 Ga.	Tri-Lobe	100	90380A281	0000
		1/2"	0.245"	0.089"	TRS							No. 2	20	33 Ga.	Tri-Lobe	100	90380A282	0000
		5/8"	0.245"	0.089"	TRS							No. 2	20	33 Ga.	Tri-Lobe	100	90380A283	0000
		3/4"	0.245"	0.089"	TRS							No. 2	20	33 Ga.	Tri-Lobe	100	90380A284	0000
		1"	0.245"	0.089"	TRS							No. 2	20	33 Ga.	Tri-Lobe	50	90380A285	0000




				No. 6 Screw Size

				3/16"	0.27"	0.097"	TRS					No. 2	19	1/8"	Tri-Lobe	100	90380A286	0000


				1/4"	0.27"	0.097"	TRS					No. 2	19	1/8"	Tri-Lobe	100	90380A144	00000
				5/16"	0.27"	0.097"	TRS					No. 2	19	1/8"	Tri-Lobe	50	90380A145	0000
				3/8"	0.27"	0.097"	TRS					No. 2	19	1/8"	Tri-Lobe	100	90380A146	00000
				7/16"	0.27"	0.097"	TRS					No. 2	19	1/8"	Tri-Lobe	50	90380A147	0000
				1/2"	0.27"	0.097"	TRS					No. 2	19	1/8"	Tri-Lobe	100	90380A148	00000
				5/8"	0.27"	0.097"	TRS					No. 2	19	1/8"	Tri-Lobe	50	90380A152	0000
				3/4"	0.27"	0.097"	TRS					No. 2	19	1/8"	Tri-Lobe	50	90380A155	0000
				7/8"	0.27"	0.097"	TRS	No. 2				19	1/8"	Tri-Lobe	50	90380A287	0000
				1"	0.27"	0.097"	TRS	No. 2	19			1/8"	Tri-Lobe	50	90380A158	0000
				1 1/8"	0.27"	0.097"	TRS	No. 2	19			1/8"	Tri-Lobe	100	90380A288	0000


				1 1/4"	0.27"	0.097"	TRS	No. 2	19			1/8"	Tri-Lobe	50	90380A289	0000
				1 1/2"	0.27"	0.097"	TRS	No. 2	19			1/8"	Tri-Lobe	50	90380A291	0000
				1 3/4"	0.27"	0.097"	TRS	No. 2	19			1/8"	Tri-Lobe	50	90380A292	0000
				2"	0.27"	0.097"	TRS	No. 2	19			1/8"	Tri-Lobe	25	90380A293	0000




						No. 8 Screw Size

						1/4"	0.322"	0.115"	TRS			No. 2	16	23 Ga.	Tri-Lobe	100	90380A190	00000


						5/16"	0.322"	0.115"	TRS	No. 2	16	23 Ga.	Tri-Lobe	50	90380A191	0000
						3/8"	0.322"	0.115"	TRS	No. 2	16	23 Ga.	Tri-Lobe	100	90380A192	00000
						7/16"	0.322"	0.115"	TRS	No. 2	16	23 Ga.	Tri-Lobe	50	90380A294	0000
						1/2"	0.322"	0.115"	TRS	No. 2	16	23 Ga.	Tri-Lobe	50	90380A194	0000
						5/8"	0.322"	0.115"	TRS	No. 2	16	23 Ga.	Tri-Lobe	50	90380A196	0000
						3/4"	0.322"	0.115"	TRS	No. 2	16	23 Ga.	Tri-Lobe	50	90380A198	0000
						7/8"	0.322"	0.115"	TRS	No. 2	16	23 Ga.	Tri-Lobe	50	90380A295	0000
						1"	0.322"	0.115"	TRS	No. 2	16	23 Ga.	Tri-Lobe	50	90380A202	00000
						1 1/4"	0.322"	0.115"	TRS	No. 2	16	23 Ga.	Tri-Lobe	50	90380A296	0000
						1 1/2"	0.322"	0.115"	TRS	No. 2	16	23 Ga.	Tri-Lobe	50	90380A297	0000


						2"	0.322"	0.115"	TRS	No. 2	16	23 Ga.	Tri-Lobe	25	90380A298	0000




								No. 10 Screw Size

1/4"	0.373"							0.133"	TRS	No. 2	14	15 Ga.	Tri-Lobe	50	90380A299	0000


3/8"	0.373"							0.133"	TRS	No. 2	14	15 Ga.	Tri-Lobe	50	90380A240	0000
1/2"	0.373"							0.133"	TRS	No. 2	14	15 Ga.	Tri-Lobe	50	90380A242	0000
5/8"	0.373"							0.133"	TRS	No. 2	14	15 Ga.	Tri-Lobe	50	90380A245	0000
3/4"	0.373"							0.133"	TRS	No. 2	14	15 Ga.	Tri-Lobe	50	90380A248	0000
7/8"	0.373"							0.133"	TRS	No. 2	14	15 Ga.	Tri-Lobe	25	90380A301	0000
1"	0.373"							0.133"	TRS	No. 2	14	15 Ga.	Tri-Lobe	50	90380A251	00000
1 1/4"	0.373"							0.133"	TRS	No. 2	14	15 Ga.	Tri-Lobe	25	90380A302	0000
1 1/2"	0.373"							0.133"	TRS	No. 2	14	15 Ga.	Tri-Lobe	25	90380A303	0000
1 3/4"	0.373"							0.133"	TRS	No. 2	14	15 Ga.	Tri-Lobe	25	90380A304	0000
2"	0.373"							0.133"	TRS	No. 2	14	15 Ga.	Tri-Lobe	10	90380A305	0000


2 1/2"	0.373"	0.133"	TRS					No. 2	14	15 Ga.	Tri-Lobe	10	90380A306	0000




		No. 12 Screw Size

		1/2"	0.425"					0.151"	TRS	No. 3	11	8 Ga.	Tri-Lobe	25	90380A307	0000


		5/8"	0.425"					0.151"	TRS	No. 3	11	8 Ga.	Tri-Lobe	25	90380A308	0000
		3/4"	0.425"					0.151"	TRS	No. 3	11	8 Ga.	Tri-Lobe	25	90380A309	0000
		1"	0.425"					0.151"	TRS	No. 3	11	8 Ga.	Tri-Lobe	25	90380A311	0000
		1 1/4"	0.425"					0.151"	TRS	No. 3	11	8 Ga.	Tri-Lobe	25	90380A312	0000




								1/4" Screw Size

								3/8"	0.476"	0.169"	TRS	No. 3	10	A	Tri-Lobe	50	90380A313	0000


								1/2"	0.476"	0.169"	TRS	No. 3	10	A	Tri-Lobe	50	90380A314	00000
				3/4"				0.476"	0.169"	TRS	No. 3	10	A	Tri-Lobe	25	90380A315	0000
				1"	0.476"			0.169"	TRS	No. 3	10	A	Tri-Lobe	25	90380A316	0000
				1 1/4"	0.476"			0.169"	TRS	No. 3	10	A	Tri-Lobe	25	90380A317	0000
				1 1/2"	0.476"			0.169"	TRS	No. 3	10	A	Tri-Lobe	25	90380A318	0000
				2"	0.476"			0.169"	TRS	No. 3	10	A	Tri-Lobe	10	90380A319	0000


				Black-Zinc-Plated Steel







										No. 2 Screw Size

										1/4"	0.167"	0.062"	TRS	No. 1	28	5/64"	Tri-Lobe	100	92295A111	0000


										3/8"	0.167"	0.062"	TRS	No. 1	28	5/64"	Tri-Lobe	100	92295A112	0000
										1/2"	0.167"	0.062"	TRS	No. 1	28	5/64"	Tri-Lobe	50	92295A113	0000




										No. 4 Screw Size

										1/4"	0.219"	0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	25	92295A100	0000


										3/8"	0.219"	0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	25	92295A101	0000
										1/2"	0.219"	0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	25	92295A103	0000
										5/8"	0.219"	0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	25	92295A106	0000
										3/4"	0.219"	0.08"	TRS	No. 1	20	37 Ga.	Tri-Lobe	25	92295A109	0000




												No. 6 Screw Size

												1/4"	0.27"	0.097"	TRS	No. 2	19	1/8"	Tri-Lobe	25	92295A203	0000


5/16"	0.27"											0.097"	TRS	No. 2	19	1/8"	Tri-Lobe	100	92295A115	0000
3/8"	0.27"											0.097"	TRS	No. 2	19	1/8"	Tri-Lobe	25	92295A205	0000
1/2"	0.27"											0.097"	TRS	No. 2	19	1/8"	Tri-Lobe	25	92295A207	0000
5/8"	0.27"											0.097"	TRS	No. 2	19	1/8"	Tri-Lobe	25	92295A209	0000
3/4"	0.27"											0.097"	TRS	No. 2	19	1/8"	Tri-Lobe	25	92295A212	0000




												No. 8 Screw Size

												1/4"	0.322"	0.115"	TRS	No. 2	16	23 Ga.	Tri-Lobe	25	92295A308	0000


		3/8"	0.322"									0.115"	TRS	No. 2	16	23 Ga.	Tri-Lobe	25	92295A311	0000
		1/2"	0.322"									0.115"	TRS	No. 2	16	23 Ga.	Tri-Lobe	25	92295A313	0000
		5/8"	0.322"									0.115"	TRS	No. 2	16	23 Ga.	Tri-Lobe	25	92295A315	0000
		3/4"	0.322"									0.115"	TRS	No. 2	16	23 Ga.	Tri-Lobe	25	92295A317	0000
		1"	0.322"									0.115"	TRS	No. 2	16	23 Ga.	Tri-Lobe	25	92295A319	0000




												No. 10 Screw Size

												3/8"	0.373"	0.133"	TRS	No. 2	14	15 Ga.	Tri-Lobe	25	92295A415	0000


				1/2"								0.373"	0.133"	TRS	No. 2	14	15 Ga.	Tri-Lobe	25	92295A417	0000

Stainless Steel Torx Plus Rounded Head Thread-Forming Screws for Plastic

Tri-Lobe Shank Cross

Section

Neither moisture nor a heavy hand can damage these screws. The deep, six-lobe recess withstands even more torque than a Torx drive to prevent slipping as you install screws in plastic. They press threads into molded or cast holes and won’t crack or distort the material. Use them to fasten plastic components, enclosures, and panels. The rounded head creates a finished look.

Length is measured from under the head.

18-8 Stainless Steel—The choice for wet and outdoor environments, these screws resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.

		Head
	Lg.	Dia.	Ht.	Tapping Screw Type	Drive Size	Approx. Threads per In.	Drill Bit Size	Shank Cross Section	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				No. 00 Screw Size

				3/32"	0.09"	0.038"	TRS	IP3, T3	51	59 Ga.	Tri-Lobe	25	96001A050	000000


				1/8"	0.09"	0.038"	TRS	IP3, T3	51	59 Ga.	Tri-Lobe	25	96001A053	00000
				3/16"	0.09"	0.038"	TRS	IP3, T3	51	59 Ga.	Tri-Lobe	25	96001A056	00000
				1/4"	0.09"	0.038"	TRS	IP3, T3	51	59 Ga.	Tri-Lobe	25	96001A059	00000




						No. 0 Screw Size

						1/8"	0.116"	0.039"	TRS	IP5, T5	42	54 Ga.	Tri-Lobe	50	96001A098	00000


						3/16"	0.116"	0.039"	TRS	IP5, T5	42	54 Ga.	Tri-Lobe	50	96001A101	00000
						1/4"	0.116"	0.039"	TRS	IP5, T5	42	54 Ga.	Tri-Lobe	50	96001A103	00000
						3/8"	0.116"	0.039"	TRS	IP5, T5	42	54 Ga.	Tri-Lobe	50	96001A107	00000




								No. 1 Screw Size

								1/8"	0.142"	0.046"	TRS	IP6, T6	32	51 Ga.	Tri-Lobe	50	96001A121	00000


								1/4"	0.142"	0.046"	TRS	IP6, T6	32	51 Ga.	Tri-Lobe	50	96001A124	00000
								3/8"	0.142"	0.046"	TRS	IP6, T6	32	51 Ga.	Tri-Lobe	50	96001A127	00000




										No. 2 Screw Size

										3/16"	0.167"	0.062"	TRS	IP7, T7	28	5/64"	Tri-Lobe	50	96001A149	00000


										1/4"	0.167"	0.062"	TRS	IP7, T7	28	5/64"	Tri-Lobe	50	96001A152	00000
										3/8"	0.167"	0.062"	TRS	IP7, T7	28	5/64"	Tri-Lobe	50	96001A156	00000
										1/2"	0.167"	0.062"	TRS	IP7, T7	28	5/64"	Tri-Lobe	50	96001A160	00000
										3/4"	0.167"	0.062"	TRS	IP7, T7	28	5/64"	Tri-Lobe	50	96001A164	00000




												No. 4 Screw Size

												1/4"	0.219"	0.08"	TRS	IP10, T10	20	37 Ga.	Tri-Lobe	50	96001A202	00000


												3/8"	0.219"	0.08"	TRS	IP10, T10	20	37 Ga.	Tri-Lobe	50	96001A206	00000
												1/2"	0.219"	0.08"	TRS	IP10, T10	20	37 Ga.	Tri-Lobe	50	96001A210	00000
												3/4"	0.219"	0.08"	TRS	IP10, T10	20	37 Ga.	Tri-Lobe	50	96001A214	00000
												7/8"	0.219"	0.08"	TRS	IP10, T10	20	37 Ga.	Tri-Lobe	50	96001A217	0000
1"												0.219"	0.08"	TRS	IP10, T10	20	37 Ga.	Tri-Lobe	50	96001A220	00000




		No. 6 Screw Size

		1/4"	0.27"									0.097"	TRS	IP15, T15	19	1/8"	Tri-Lobe	50	96001A256	00000


		3/8"	0.27"									0.097"	TRS	IP15, T15	19	1/8"	Tri-Lobe	50	96001A260	00000
		1/2"	0.27"									0.097"	TRS	IP15, T15	19	1/8"	Tri-Lobe	50	96001A264	00000
		3/4"	0.27"									0.097"	TRS	IP15, T15	19	1/8"	Tri-Lobe	50	96001A268	00000
		7/8"	0.27"									0.097"	TRS	IP15, T15	19	1/8"	Tri-Lobe	50	96001A271	00000
		1"	0.27"									0.097"	TRS	IP15, T15	19	1/8"	Tri-Lobe	50	96001A274	00000




				No. 8 Screw Size

				3/8"	0.322"							0.115"	TRS	IP20, T20	16	23 Ga.	Tri-Lobe	50	96001A318	00000


				1/2"	0.322"							0.115"	TRS	IP20, T20	16	23 Ga.	Tri-Lobe	50	96001A322	00000
				3/4"	0.322"							0.115"	TRS	IP20, T20	16	23 Ga.	Tri-Lobe	50	96001A326	00000
				1"	0.322"							0.115"	TRS	IP20, T20	16	23 Ga.	Tri-Lobe	50	96001A329	00000




						M1.59 Screw Size

						2 mm	2.95 mm					1.12 mm	TRS	IP5, T5	—	54 Ga.	Tri-Lobe	50	99397A006	00000


						3 mm	2.95 mm					1.12 mm	TRS	IP5, T5	—	54 Ga.	Tri-Lobe	50	99397A009	00000
						4 mm	2.95 mm					1.12 mm	TRS	IP5, T5	—	54 Ga.	Tri-Lobe	50	99397A012	00000
						5 mm	2.95 mm					1.12 mm	TRS	IP5, T5	—	54 Ga.	Tri-Lobe	50	99397A015	00000
						6 mm	2.95 mm					1.12 mm	TRS	IP5, T5	—	54 Ga.	Tri-Lobe	50	99397A018	00000
						8 mm	2.95 mm					1.12 mm	TRS	IP5, T5	—	54 Ga.	Tri-Lobe	50	99397A022	00000




								M1.91 Screw Size

								3 mm	4 mm			1.6 mm	TRS	IP6, T6	—	51 Ga.	Tri-Lobe	50	99397A061	00000


								4 mm	4 mm			1.6 mm	TRS	IP6, T6	—	51 Ga.	Tri-Lobe	50	99397A064	00000
								5 mm	4 mm			1.6 mm	TRS	IP6, T6	—	51 Ga.	Tri-Lobe	50	99397A066	00000
								6 mm	4 mm			1.6 mm	TRS	IP6, T6	—	51 Ga.	Tri-Lobe	50	99397A068	00000
								8 mm	4 mm			1.6 mm	TRS	IP6, T6	—	51 Ga.	Tri-Lobe	50	99397A072	00000
								10 mm	4 mm			1.6 mm	TRS	IP6, T6	—	51 Ga.	Tri-Lobe	50	99397A074	00000
								12 mm	4 mm			1.6 mm	TRS	IP6, T6	—	51 Ga.	Tri-Lobe	50	99397A077	00000




										M2.26 Screw Size

										4 mm	4 mm	1.6 mm	TRS	IP6, T6	—	5/64"	Tri-Lobe	50	99397A182	00000


										5 mm	4 mm	1.6 mm	TRS	IP6, T6	—	5/64"	Tri-Lobe	50	99397A185	00000
										6 mm	4 mm	1.6 mm	TRS	IP6, T6	—	5/64"	Tri-Lobe	50	99397A187	00000
8 mm										4 mm	1.6 mm	TRS	IP6, T6	—	5/64"	Tri-Lobe	50	99397A189	00000
10 mm	4 mm									1.6 mm	TRS	IP6, T6	—	5/64"	Tri-Lobe	50	99397A192	00000
12 mm	4 mm									1.6 mm	TRS	IP6, T6	—	5/64"	Tri-Lobe	50	99397A195	00000




										M2.63 Screw Size

										4 mm	5 mm	2.1 mm	TRS	IP8, T8	—	43 Ga.	Tri-Lobe	50	99397A344	00000


										5 mm	5 mm	2.1 mm	TRS	IP8, T8	—	43 Ga.	Tri-Lobe	50	99397A347	00000
										6 mm	5 mm	2.1 mm	TRS	IP8, T8	—	43 Ga.	Tri-Lobe	50	99397A349	00000
		8 mm								5 mm	2.1 mm	TRS	IP8, T8	—	43 Ga.	Tri-Lobe	50	99397A351	00000
		10 mm	5 mm							2.1 mm	TRS	IP8, T8	—	43 Ga.	Tri-Lobe	50	99397A354	00000
		12 mm	5 mm							2.1 mm	TRS	IP8, T8	—	43 Ga.	Tri-Lobe	50	99397A356	00000
		14 mm	5 mm							2.1 mm	TRS	IP8, T8	—	43 Ga.	Tri-Lobe	50	99397A359	00000




										M3.12 Screw Size

										4 mm	5.6 mm	2.4 mm	TRS	IP10, T10	—	37 Ga.	Tri-Lobe	50	99397A433	00000


				5 mm	5.6 mm					2.4 mm	TRS	IP10, T10	—	37 Ga.	Tri-Lobe	50	99397A436	00000
				6 mm	5.6 mm					2.4 mm	TRS	IP10, T10	—	37 Ga.	Tri-Lobe	50	99397A438	00000
				8 mm	5.6 mm					2.4 mm	TRS	IP10, T10	—	37 Ga.	Tri-Lobe	50	99397A441	00000
				10 mm	5.6 mm					2.4 mm	TRS	IP10, T10	—	37 Ga.	Tri-Lobe	50	99397A445	00000
				12 mm	5.6 mm					2.4 mm	TRS	IP10, T10	—	37 Ga.	Tri-Lobe	50	99397A448	00000
				14 mm	5.6 mm					2.4 mm	TRS	IP10, T10	—	37 Ga.	Tri-Lobe	50	99397A450	00000




										M3.63 Screw Size

										6 mm	7 mm	2.6 mm	TRS	IP15, T15	—	1/8"	Tri-Lobe	50	99397A480	00000


						8 mm	7 mm			2.6 mm	TRS	IP15, T15	—	1/8"	Tri-Lobe	50	99397A482	00000
						10 mm	7 mm			2.6 mm	TRS	IP15, T15	—	1/8"	Tri-Lobe	50	99397A484	00000
						12 mm	7 mm			2.6 mm	TRS	IP15, T15	—	1/8"	Tri-Lobe	50	99397A486	00000
						14 mm	7 mm			2.6 mm	TRS	IP15, T15	—	1/8"	Tri-Lobe	50	99397A489	00000




										M4.55 Screw Size

										6 mm	8 mm	3.1 mm	TRS	IP20, T20	—	23 Ga.	Tri-Lobe	50	99397A758	00000


								8 mm		8 mm	3.1 mm	TRS	IP20, T20	—	23 Ga.	Tri-Lobe	50	99397A761	00000
								10 mm	8 mm	3.1 mm	TRS	IP20, T20	—	23 Ga.	Tri-Lobe	50	99397A764	00000
								12 mm	8 mm	3.1 mm	TRS	IP20, T20	—	23 Ga.	Tri-Lobe	50	99397A767	00000
								14 mm	8 mm	3.1 mm	TRS	IP20, T20	—	23 Ga.	Tri-Lobe	50	99397A770	00000
								16 mm	8 mm	3.1 mm	TRS	IP20, T20	—	23 Ga.	Tri-Lobe	50	99397A772	00000

Stainless Steel Torx Flat Head Thread-Forming Screws for Plastic


Round Shank Cross Section	Tri-Lobe Shank Cross Section

Drivers won’t slip out of these corrosion-resistant screws, which form threads in plastic to secure components with countersunk holes. Also known as star drive, the six-lobe Torx recess withstands more torque than slotted, Phillips, or hex drives. Screws press threads into molded or cast holes without cracking or distorting the material. Use them to fasten plastic components, enclosures, and panels. Their flat, beveled head sits flush in holes.

Length is measured from the top of the head.

18-8 Stainless Steel—The choice for wet and outdoor environments, these screws resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.

		Head
	Lg.	Dia.	Ht.	Tapping Screw Type	Drive Size	Approx. Threads per In.	Countersink Angle	Flat Head Profile	Drill Bit Size	Shank Cross Section	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				No. 2 Screw Size

				3/8"	0.162"	0.051"	TRS	T6	28	82°	Standard	48 Ga.	Tri-Lobe	50	95893A621	000000




						No. 4 Screw Size

						5/8"	0.212"	0.067"	TRS	T8	20	82°	Standard	44 Ga.	Tri-Lobe	50	95893A622	00000


						3/4"	0.212"	0.067"	TRS	T8	20	82°	Standard	44 Ga.	Tri-Lobe	50	95893A623	00000




								No. 6 Screw Size

								3/8"	0.262"	0.083"	TRS	T10	19	82°	Standard	32 Ga.	Tri-Lobe	50	95893A624	00000


								5/8"	0.262"	0.083"	TRS	T10	19	82°	Standard	32 Ga.	Tri-Lobe	25	95893A625	0000
								1"	0.262"	0.083"	TRS	T10	19	82°	Standard	32 Ga.	Tri-Lobe	50	95893A626	00000




										No. 8 Screw Size

										1"	0.312"	0.1"	TRS	T15	16	82°	Standard	29 Ga.	Tri-Lobe	25	95893A627	0000




												M1.6 Screw Size

												5 mm	3 mm	0.96 mm	TRS	T5	—	90°	Standard	55 Ga.	Round	50	95893A161	00000


												6 mm	3 mm	0.96 mm	TRS	T5	—	90°	Standard	55 Ga.	Round	50	95893A162	00000
												8 mm	3 mm	0.96 mm	TRS	T5	—	90°	Standard	55 Ga.	Round	50	95893A163	00000




														M2 Screw Size

														5 mm	3.8 mm	0.96 mm	TRS	T6	—	90°	Standard	52 Ga.	Round	50	95893A164	00000


														6 mm	3.8 mm	0.96 mm	TRS	T6	—	90°	Standard	52 Ga.	Round	50	95893A165	00000
														8 mm	3.8 mm	0.96 mm	TRS	T6	—	90°	Standard	52 Ga.	Round	50	95893A166	00000
														10 mm	3.8 mm	0.96 mm	TRS	T6	—	90°	Standard	52 Ga.	Round	25	95893A167	0000




	M2.2 Screw Size

	5 mm														3.8 mm	1.2 mm	TRS	T6	—	90°	Standard	50 Ga.	Round	50	95893A168	0000


	6 mm	3.8 mm													1.2 mm	TRS	T6	—	90°	Standard	50 Ga.	Round	50	95893A169	0000
	8 mm	3.8 mm	1.2 mm												TRS	T6	—	90°	Standard	50 Ga.	Round	100	95893A171	00000
	10 mm	3.8 mm	1.2 mm												TRS	T6	—	90°	Standard	50 Ga.	Round	100	95893A172	00000
	12 mm	3.8 mm	1.2 mm												TRS	T6	—	90°	Standard	50 Ga.	Round	50	95893A173	0000
	14 mm	3.8 mm	1.2 mm												TRS	T6	—	90°	Standard	50 Ga.	Round	50	95893A174	00000
	16 mm	3.8 mm	1.2 mm												TRS	T6	—	90°	Standard	50 Ga.	Round	50	95893A175	00000




			M2.5 Screw Size

			5 mm	4.7 mm	1.7 mm										TRS	T8	—	90°	Standard	45 Ga.	Round	50	95893A177	0000


			6 mm	4.7 mm	1.7 mm										TRS	T8	—	90°	Standard	45 Ga.	Round	100	95893A178	00000
			8 mm	4.7 mm	1.7 mm										TRS	T8	—	90°	Standard	45 Ga.	Round	100	95893A179	00000
			10 mm	4.7 mm	1.7 mm										TRS	T8	—	90°	Standard	45 Ga.	Round	100	95893A181	00000
			12 mm	4.7 mm	1.7 mm	TRS									T8	—	90°	Standard	45 Ga.	Round	50	95893A182	0000
			14 mm	4.7 mm	1.7 mm	TRS	T8								—	90°	Standard	45 Ga.	Round	50	95893A183	00000
			16 mm	4.7 mm	1.7 mm	TRS	T8								—	90°	Standard	45 Ga.	Round	50	95893A184	00000
			18 mm	4.7 mm	1.7 mm	TRS	T8								—	90°	Standard	45 Ga.	Round	50	95893A185	00000
			20 mm	4.7 mm	1.7 mm	TRS	T8								—	90°	Standard	45 Ga.	Round	50	95893A186	00000




					M3 Screw Size

					5 mm	5.5 mm	1.8 mm								TRS	T8	—	90°	Standard	41 Ga.	Round	50	95893A187	0000


					6 mm	5.5 mm	1.8 mm	TRS	T8						—	90°	Standard	41 Ga.	Round	50	95893A188	0000
					8 mm	5.5 mm	1.8 mm	TRS	T8						—	90°	Standard	41 Ga.	Round	100	95893A189	00000
					10 mm	5.5 mm	1.8 mm	TRS	T8						—	90°	Standard	41 Ga.	Round	100	95893A191	00000
					12 mm	5.5 mm	1.8 mm	TRS	T8						—	90°	Standard	41 Ga.	Round	100	95893A192	00000
					14 mm	5.5 mm	1.8 mm	TRS	T8						—	90°	Standard	41 Ga.	Round	50	95893A193	00000
					16 mm	5.5 mm	1.8 mm	TRS	T8	—					90°	Standard	41 Ga.	Round	50	95893A194	0000
					18 mm	5.5 mm	1.8 mm	TRS	T8	—	90°				Standard	41 Ga.	Round	50	95893A195	00000
					20 mm	5.5 mm	1.8 mm	TRS	T8	—	90°				Standard	41 Ga.	Round	50	95893A196	00000
					25 mm	5.5 mm	1.8 mm	TRS	T8	—	90°				Standard	41 Ga.	Round	25	95893A197	0000
					30 mm	5.5 mm	1.8 mm	TRS	T8	—	90°				Standard	41 Ga.	Round	25	95893A198	0000




							M3.5 Screw Size

							8 mm	7.3 mm	2.5 mm	TRS	T15				—	90°	Standard	34 Ga.	Round	50	95893A199	00000


							10 mm	7.3 mm	2.5 mm	TRS	T15	—	90°		Standard	34 Ga.	Round	50	95893A221	0000
							12 mm	7.3 mm	2.5 mm	TRS	T15	—	90°		Standard	34 Ga.	Round	50	95893A222	0000
							16 mm	7.3 mm	2.5 mm	TRS	T15	—	90°		Standard	34 Ga.	Round	50	95893A224	00000
							25 mm	7.3 mm	2.5 mm	TRS	T15	—	90°		Standard	34 Ga.	Round	25	95893A227	00000




								M4 Screw Size

								8 mm	8.4 mm	2.9 mm	TRS	T20	—		90°	Standard	30 Ga.	Round	25	95893A232	0000


								10 mm	8.4 mm	2.9 mm	TRS	T20	—	90°	Standard	30 Ga.	Round	25	95893A233	0000
								12 mm	8.4 mm	2.9 mm	TRS	T20	—	90°	Standard	30 Ga.	Round	25	95893A234	0000
								14 mm	8.4 mm	2.9 mm	TRS	T20	—	90°	Standard	30 Ga.	Round	25	95893A235	0000
								16 mm	8.4 mm	2.9 mm	TRS	T20	—	90°	Standard	30 Ga.	Round	25	95893A236	0000
								18 mm	8.4 mm	2.9 mm	TRS	T20	—	90°	Standard	30 Ga.	Round	25	95893A237	0000
								20 mm	8.4 mm	2.9 mm	TRS	T20	—	90°	Standard	30 Ga.	Round	25	95893A238	0000
								25 mm	8.4 mm	2.9 mm	TRS	T20	—	90°	Standard	30 Ga.	Round	25	95893A239	00000
								30 mm	8.4 mm	2.9 mm	TRS	T20	—	90°	Standard	30 Ga.	Round	25	95893A241	00000
	35 mm							8.4 mm	2.9 mm	TRS	T20	—	90°	Standard	30 Ga.	Round	10	95893A242	0000
	40 mm	8.4 mm						2.9 mm	TRS	T20	—	90°	Standard	30 Ga.	Round	10	95893A243	0000




								M5 Screw Size

								10 mm	9.3 mm	2.9 mm	TRS	T20	—	90°	Standard	21 Ga.	Round	25	95893A245	0000


								12 mm	9.3 mm	2.9 mm	TRS	T20	—	90°	Standard	21 Ga.	Round	25	95893A246	0000
								14 mm	9.3 mm	2.9 mm	TRS	T20	—	90°	Standard	21 Ga.	Round	25	95893A247	0000
								16 mm	9.3 mm	2.9 mm	TRS	T20	—	90°	Standard	21 Ga.	Round	25	95893A248	00000
								18 mm	9.3 mm	2.9 mm	TRS	T20	—	90°	Standard	21 Ga.	Round	25	95893A249	00000
								20 mm	9.3 mm	2.9 mm	TRS	T20	—	90°	Standard	21 Ga.	Round	25	95893A261	00000
								25 mm	9.3 mm	2.9 mm	TRS	T20	—	90°	Standard	21 Ga.	Round	10	95893A262	0000
			30 mm					9.3 mm	2.9 mm	TRS	T20	—	90°	Standard	21 Ga.	Round	10	95893A263	0000

Steel Torx Plus Rounded Head Thread-Forming Screws for Plastic

Tri-Lobe Shank Cross

Section

A heavy hand won’t strip the drive on these screws as you thread them into plastic. The deep, six-lobe recess withstands even more torque than a Torx drive. These screws press threads into molded or cast holes and won’t crack or distort the material. Use them to fasten plastic components, enclosures, and panels. The rounded head creates a finished look.

Length is measured from under the head.

Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.

		Head
	Lg.	Dia.	Ht.	Tapping Screw Type	Drive Size	Approx. Threads per In.	Drill Bit Size	Shank Cross Section	Pkg. Qty.		Pkg.
Zinc-Plated Steel







				No. 0 Screw Size

				3/16"	0.116"	0.039"	TRS	IP5, T5	42	54 Ga.	Tri-Lobe	50	99512A108	000000


				1/4"	0.116"	0.039"	TRS	IP5, T5	42	54 Ga.	Tri-Lobe	50	99512A111	00000
				3/8"	0.116"	0.039"	TRS	IP5, T5	42	54 Ga.	Tri-Lobe	50	99512A117	00000




						No. 2 Screw Size

						1/4"	0.167"	0.062"	TRS	IP7, T7	28	5/64"	Tri-Lobe	100	99512A153	00000


						3/8"	0.167"	0.062"	TRS	IP7, T7	28	5/64"	Tri-Lobe	100	99512A159	00000
						1/2"	0.167"	0.062"	TRS	IP7, T7	28	5/64"	Tri-Lobe	100	99512A162	00000




								No. 4 Screw Size

								1/4"	0.219"	0.08"	TRS	IP10, T10	20	37 Ga.	Tri-Lobe	100	99512A210	00000


								3/8"	0.219"	0.08"	TRS	IP10, T10	20	37 Ga.	Tri-Lobe	100	99512A216	00000
								1/2"	0.219"	0.08"	TRS	IP10, T10	20	37 Ga.	Tri-Lobe	100	99512A219	00000
								3/4"	0.219"	0.08"	TRS	IP10, T10	20	37 Ga.	Tri-Lobe	100	99512A225	00000




										No. 6 Screw Size

										1/4"	0.27"	0.097"	TRS	IP15, T15	19	1/8"	Tri-Lobe	100	99512A250	00000


										1/2"	0.27"	0.097"	TRS	IP15, T15	19	1/8"	Tri-Lobe	100	99512A259	00000
										3/4"	0.27"	0.097"	TRS	IP15, T15	19	1/8"	Tri-Lobe	100	99512A265	00000




												No. 8 Screw Size

												1/4"	0.322"	0.115"	TRS	IP20, T20	16	23 Ga.	Tri-Lobe	100	99512A310	00000


												1/2"	0.322"	0.115"	TRS	IP20, T20	16	23 Ga.	Tri-Lobe	100	99512A316	00000
												3/4"	0.322"	0.115"	TRS	IP20, T20	16	23 Ga.	Tri-Lobe	100	99512A322	00000
												1"	0.322"	0.115"	TRS	IP20, T20	16	23 Ga.	Tri-Lobe	100	99512A325	00000




No. 10 Screw Size

1/2"	0.373"													0.133"	TRS	IP25, T25	14	15 Ga.	Tri-Lobe	50	99512A450	0000


3/4"	0.373"													0.133"	TRS	IP25, T25	14	15 Ga.	Tri-Lobe	50	99512A456	0000
1"	0.373"	0.133"												TRS	IP25, T25	14	15 Ga.	Tri-Lobe	50	99512A459	0000
1 1/4"	0.373"	0.133"	TRS											IP25, T25	14	15 Ga.	Tri-Lobe	50	99512A462	0000
1 1/2"	0.373"	0.133"	TRS											IP25, T25	14	15 Ga.	Tri-Lobe	50	99512A465	00000




		1/4" Screw Size

		1/2"	0.473"											0.162"	TRS	IP30, T30	10	A	Tri-Lobe	50	99512A510	00000


		3/4"	0.473"	0.162"										TRS	IP30, T30	10	A	Tri-Lobe	50	99512A516	00000
		1"	0.473"	0.162"	TRS									IP30, T30	10	A	Tri-Lobe	50	99512A519	00000
		1 1/4"	0.473"	0.162"	TRS									IP30, T30	10	A	Tri-Lobe	50	99512A522	00000
		1 1/2"	0.473"	0.162"	TRS									IP30, T30	10	A	Tri-Lobe	50	99512A525	00000




				M1.59 Screw Size

				4 mm	2.95 mm									1.12 mm	TRS	IP5, T5	—	54 Ga.	Tri-Lobe	50	99397A122	00000


				5 mm	2.95 mm	1.12 mm	TRS							IP5, T5	—	54 Ga.	Tri-Lobe	50	99397A123	00000
				6 mm	2.95 mm	1.12 mm	TRS							IP5, T5	—	54 Ga.	Tri-Lobe	50	99397A124	00000
				8 mm	2.95 mm	1.12 mm	TRS							IP5, T5	—	54 Ga.	Tri-Lobe	50	99397A164	00000




						M1.91 Screw Size

						3 mm	4 mm							1.6 mm	TRS	IP6, T6	—	51 Ga.	Tri-Lobe	50	99397A221	00000


						4 mm	4 mm	1.6 mm						TRS	IP6, T6	—	51 Ga.	Tri-Lobe	50	99397A222	00000
						5 mm	4 mm	1.6 mm	TRS					IP6, T6	—	51 Ga.	Tri-Lobe	50	99397A223	00000
						6 mm	4 mm	1.6 mm	TRS					IP6, T6	—	51 Ga.	Tri-Lobe	50	99397A224	00000
						8 mm	4 mm	1.6 mm	TRS					IP6, T6	—	51 Ga.	Tri-Lobe	50	99397A264	00000
						10 mm	4 mm	1.6 mm	TRS					IP6, T6	—	51 Ga.	Tri-Lobe	50	99397A267	00000
						12 mm	4 mm	1.6 mm	TRS					IP6, T6	—	51 Ga.	Tri-Lobe	50	99397A269	00000




								M2.26 Screw Size

								4 mm	4 mm	1.6 mm				TRS	IP6, T6	—	5/64"	Tri-Lobe	50	99397A322	00000


								5 mm	4 mm	1.6 mm	TRS			IP6, T6	—	5/64"	Tri-Lobe	50	99397A323	00000
								6 mm	4 mm	1.6 mm	TRS			IP6, T6	—	5/64"	Tri-Lobe	50	99397A324	00000
								8 mm	4 mm	1.6 mm	TRS			IP6, T6	—	5/64"	Tri-Lobe	50	99397A325	00000
								10 mm	4 mm	1.6 mm	TRS			IP6, T6	—	5/64"	Tri-Lobe	50	99397A326	00000
								12 mm	4 mm	1.6 mm	TRS			IP6, T6	—	5/64"	Tri-Lobe	50	99397A327	00000




										M2.63 Screw Size

										3 mm	5 mm	2.1 mm	TRS	IP8, T8	—	43 Ga.	Tri-Lobe	50	99397A411	00000


										4 mm	5 mm	2.1 mm	TRS	IP8, T8	—	43 Ga.	Tri-Lobe	50	99397A412	00000
										5 mm	5 mm	2.1 mm	TRS	IP8, T8	—	43 Ga.	Tri-Lobe	50	99397A413	00000
										6 mm	5 mm	2.1 mm	TRS	IP8, T8	—	43 Ga.	Tri-Lobe	50	99397A414	00000
8 mm										5 mm	2.1 mm	TRS	IP8, T8	—	43 Ga.	Tri-Lobe	50	99397A415	00000
10 mm	5 mm									2.1 mm	TRS	IP8, T8	—	43 Ga.	Tri-Lobe	50	99397A416	00000
12 mm	5 mm									2.1 mm	TRS	IP8, T8	—	43 Ga.	Tri-Lobe	50	99397A417	00000
14 mm	5 mm									2.1 mm	TRS	IP8, T8	—	43 Ga.	Tri-Lobe	50	99397A583	00000




										M3.12 Screw Size

										4 mm	5.6 mm	2.4 mm	TRS	IP10, T10	—	37 Ga.	Tri-Lobe	50	99397A611	00000


		5 mm								5.6 mm	2.4 mm	TRS	IP10, T10	—	37 Ga.	Tri-Lobe	50	99397A614	00000
		6 mm	5.6 mm							2.4 mm	TRS	IP10, T10	—	37 Ga.	Tri-Lobe	50	99397A616	00000
		8 mm	5.6 mm							2.4 mm	TRS	IP10, T10	—	37 Ga.	Tri-Lobe	50	99397A619	00000
		10 mm	5.6 mm							2.4 mm	TRS	IP10, T10	—	37 Ga.	Tri-Lobe	50	99397A622	00000
		12 mm	5.6 mm							2.4 mm	TRS	IP10, T10	—	37 Ga.	Tri-Lobe	50	99397A626	00000
		14 mm	5.6 mm							2.4 mm	TRS	IP10, T10	—	37 Ga.	Tri-Lobe	50	99397A628	00000




										M3.63 Screw Size

				6 mm						7 mm	2.6 mm	TRS	IP15, T15	—	1/8"	Tri-Lobe	50	99397A675	00000


				8 mm	7 mm					2.6 mm	TRS	IP15, T15	—	1/8"	Tri-Lobe	50	99397A677	00000
				10 mm	7 mm					2.6 mm	TRS	IP15, T15	—	1/8"	Tri-Lobe	50	99397A679	00000
				12 mm	7 mm					2.6 mm	TRS	IP15, T15	—	1/8"	Tri-Lobe	50	99397A682	00000
				14 mm	7 mm					2.6 mm	TRS	IP15, T15	—	1/8"	Tri-Lobe	50	99397A686	00000




										M4.55 Screw Size

										5 mm	8 mm	3.1 mm	TRS	IP20, T20	—	23 Ga.	Tri-Lobe	50	99397A721	00000


						6 mm	8 mm			3.1 mm	TRS	IP20, T20	—	23 Ga.	Tri-Lobe	50	99397A724	00000
						8 mm	8 mm			3.1 mm	TRS	IP20, T20	—	23 Ga.	Tri-Lobe	50	99397A726	00000
						10 mm	8 mm			3.1 mm	TRS	IP20, T20	—	23 Ga.	Tri-Lobe	50	99397A729	00000
						12 mm	8 mm			3.1 mm	TRS	IP20, T20	—	23 Ga.	Tri-Lobe	50	99397A731	00000
						14 mm	8 mm			3.1 mm	TRS	IP20, T20	—	23 Ga.	Tri-Lobe	50	99397A734	00000
						16 mm	8 mm			3.1 mm	TRS	IP20, T20	—	23 Ga.	Tri-Lobe	50	99397A737	00000

Stainless Steel Phillips Flat Head Thread-Forming Screws for Plastic


Round Shank Cross Section	Tri-Lobe Shank Cross Section

These corrosion-resistant screws thread into plastic components, enclosures, and panels with countersunk holes. The head is flat on top and beveled underneath to sit flush with surfaces. The Phillips drive handles enough torque to keep drivers from slipping.

Length is measured from the top of the head.

18-8 Stainless Steel—The choice for wet and outdoor environments, these screws resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.

		Head
	Lg.	Dia.	Ht.	Tapping Screw Type	Drive Size	Approx. Threads per In.	Countersink Angle	Flat Head Profile	Drill Bit Size, mm	Shank Cross Section	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				No. 2 Screw Size

				1/4"	0.162"	0.051"	TRS	No. 1	28	82°	Standard	48 Ga.	Tri-Lobe	50	90485A110	000000


				5/16"	0.162"	0.051"	TRS	No. 1	28	82°	Standard	48 Ga.	Tri-Lobe	50	90485A120	0000
				3/8"	0.162"	0.051"	TRS	No. 1	28	82°	Standard	48 Ga.	Tri-Lobe	50	90485A130	0000
				1/2"	0.162"	0.051"	TRS	No. 1	28	82°	Standard	48 Ga.	Tri-Lobe	50	90485A140	00000




						No. 4 Screw Size

						5/16"	0.212"	0.067"	TRS	No. 1	20	82°	Standard	44 Ga.	Tri-Lobe	50	90485A150	00000


						3/8"	0.212"	0.067"	TRS	No. 1	20	82°	Standard	44 Ga.	Tri-Lobe	50	90485A160	00000
						1/2"	0.212"	0.067"	TRS	No. 1	20	82°	Standard	44 Ga.	Tri-Lobe	50	90485A170	00000
						5/8"	0.212"	0.067"	TRS	No. 1	20	82°	Standard	44 Ga.	Tri-Lobe	25	90485A180	0000
						3/4"	0.212"	0.067"	TRS	No. 1	20	82°	Standard	44 Ga.	Tri-Lobe	25	90485A190	0000




								No. 6 Screw Size

								3/8"	0.262"	0.083"	TRS	No. 2	19	82°	Standard	32 Ga.	Tri-Lobe	50	90485A210	00000


								1/2"	0.262"	0.083"	TRS	No. 2	19	82°	Standard	32 Ga.	Tri-Lobe	50	90485A220	00000
								5/8"	0.262"	0.083"	TRS	No. 2	19	82°	Standard	32 Ga.	Tri-Lobe	50	90485A230	00000
								3/4"	0.262"	0.083"	TRS	No. 2	19	82°	Standard	32 Ga.	Tri-Lobe	50	90485A240	00000
								1"	0.262"	0.083"	TRS	No. 2	19	82°	Standard	32 Ga.	Tri-Lobe	25	90485A250	0000




										No. 8 Screw Size

										1/2"	0.312"	0.1"	TRS	No. 2	16	82°	Standard	29 Ga.	Tri-Lobe	25	90485A260	00000


										5/8"	0.312"	0.1"	TRS	No. 2	16	82°	Standard	29 Ga.	Tri-Lobe	25	90485A270	00000
										3/4"	0.312"	0.1"	TRS	No. 2	16	82°	Standard	29 Ga.	Tri-Lobe	10	90485A280	0000
										1"	0.312"	0.1"	TRS	No. 2	16	82°	Standard	29 Ga.	Tri-Lobe	10	90485A290	0000
										1 1/4"	0.312"	0.1"	TRS	No. 2	16	82°	Standard	29 Ga.	Tri-Lobe	10	90485A310	00000
										1 1/2"	0.312"	0.1"	TRS	No. 2	16	82°	Standard	29 Ga.	Tri-Lobe	10	90485A320	0000




												No. 10 Screw Size

												5/8"	0.362"	0.116"	TRS	No. 2	14	82°	Standard	21 Ga.	Tri-Lobe	25	90485A330	00000


3/4"												0.362"	0.116"	TRS	No. 2	14	82°	Standard	21 Ga.	Tri-Lobe	10	90485A340	0000
1"	0.362"											0.116"	TRS	No. 2	14	82°	Standard	21 Ga.	Tri-Lobe	10	90485A350	0000
1 1/4"	0.362"											0.116"	TRS	No. 2	14	82°	Standard	21 Ga.	Tri-Lobe	10	90485A360	0000




		1/4" Screw Size

		3/4"	0.477"									0.153"	TRS	No. 3	10	82°	Standard	5.5	Tri-Lobe	10	90485A370	0000


		1"	0.477"									0.153"	TRS	No. 3	10	82°	Standard	5.5	Tri-Lobe	5	90485A380	0000
		1 1/4"	0.477"									0.153"	TRS	No. 3	10	82°	Standard	5.5	Tri-Lobe	5	90485A390	00000




				M1.6 Screw Size

				5 mm	3 mm							0.96 mm	TRS	No. 0	—	90°	Standard	55 Ga.	Round	50	90485A411	00000


				6 mm	3 mm							0.96 mm	TRS	No. 0	—	90°	Standard	55 Ga.	Round	50	90485A412	00000
				8 mm	3 mm							0.96 mm	TRS	No. 0	—	90°	Standard	55 Ga.	Round	25	90485A413	0000




												M2 Screw Size

												5 mm	3.8 mm	0.96 mm	TRS	No. 0	—	90°	Standard	52 Ga.	Round	50	90485A414	0000


						6 mm	3.8 mm					0.96 mm	TRS	No. 0	—	90°	Standard	52 Ga.	Round	50	90485A415	0000
						8 mm	3.8 mm					0.96 mm	TRS	No. 0	—	90°	Standard	52 Ga.	Round	50	90485A416	0000
						10 mm	3.8 mm					0.96 mm	TRS	No. 0	—	90°	Standard	52 Ga.	Round	50	90485A417	00000




												M2.2 Screw Size

												4 mm	3.8 mm	1.2 mm	TRS	No. 0	—	90°	Standard	50 Ga.	Round	50	90485A418	0000


								5 mm	3.8 mm			1.2 mm	TRS	No. 0	—	90°	Standard	50 Ga.	Round	50	90485A419	0000
								6 mm	3.8 mm			1.2 mm	TRS	No. 0	—	90°	Standard	50 Ga.	Round	100	90485A421	00000
								8 mm	3.8 mm			1.2 mm	TRS	No. 0	—	90°	Standard	50 Ga.	Round	100	90485A422	00000
								12 mm	3.8 mm			1.2 mm	TRS	No. 0	—	90°	Standard	50 Ga.	Round	100	90485A424	00000
								16 mm	3.8 mm			1.2 mm	TRS	No. 0	—	90°	Standard	50 Ga.	Round	50	90485A426	0000




												M2.5 Screw Size

												5 mm	4.7 mm	1.7 mm	TRS	No. 1	—	90°	Standard	45 Ga.	Round	50	90485A428	0000


										6 mm	4.7 mm	1.7 mm	TRS	No. 1	—	90°	Standard	45 Ga.	Round	100	90485A429	00000
										8 mm	4.7 mm	1.7 mm	TRS	No. 1	—	90°	Standard	45 Ga.	Round	100	90485A431	00000
										10 mm	4.7 mm	1.7 mm	TRS	No. 1	—	90°	Standard	45 Ga.	Round	100	90485A432	00000
										12 mm	4.7 mm	1.7 mm	TRS	No. 1	—	90°	Standard	45 Ga.	Round	100	90485A433	00000
										14 mm	4.7 mm	1.7 mm	TRS	No. 1	—	90°	Standard	45 Ga.	Round	50	90485A434	00000
										16 mm	4.7 mm	1.7 mm	TRS	No. 1	—	90°	Standard	45 Ga.	Round	50	90485A435	0000
										18 mm	4.7 mm	1.7 mm	TRS	No. 1	—	90°	Standard	45 Ga.	Round	50	90485A436	00000
										20 mm	4.7 mm	1.7 mm	TRS	No. 1	—	90°	Standard	45 Ga.	Round	50	90485A437	00000




										M3 Screw Size

										5 mm	5.5 mm	1.8 mm	TRS	No. 1	—	90°	Standard	41 Ga.	Round	50	90485A438	0000


										6 mm	5.5 mm	1.8 mm	TRS	No. 1	—	90°	Standard	41 Ga.	Round	50	90485A439	00000
										8 mm	5.5 mm	1.8 mm	TRS	No. 1	—	90°	Standard	41 Ga.	Round	100	90485A441	00000
										10 mm	5.5 mm	1.8 mm	TRS	No. 1	—	90°	Standard	41 Ga.	Round	100	90485A442	00000
		12 mm								5.5 mm	1.8 mm	TRS	No. 1	—	90°	Standard	41 Ga.	Round	100	90485A443	00000
		14 mm	5.5 mm							1.8 mm	TRS	No. 1	—	90°	Standard	41 Ga.	Round	100	90485A444	00000
		16 mm	5.5 mm							1.8 mm	TRS	No. 1	—	90°	Standard	41 Ga.	Round	50	90485A445	0000
		20 mm	5.5 mm							1.8 mm	TRS	No. 1	—	90°	Standard	41 Ga.	Round	50	90485A447	0000
		25 mm	5.5 mm							1.8 mm	TRS	No. 1	—	90°	Standard	41 Ga.	Round	50	90485A448	00000
		30 mm	5.5 mm							1.8 mm	TRS	No. 1	—	90°	Standard	41 Ga.	Round	25	90485A449	0000




										M3.5 Screw Size

				8 mm	7.3 mm					2.5 mm	TRS	No. 2	—	90°	Standard	34 Ga.	Round	100	90485A451	00000


				10 mm	7.3 mm					2.5 mm	TRS	No. 2	—	90°	Standard	34 Ga.	Round	50	90485A452	0000
				12 mm	7.3 mm					2.5 mm	TRS	No. 2	—	90°	Standard	34 Ga.	Round	50	90485A453	0000
				14 mm	7.3 mm					2.5 mm	TRS	No. 2	—	90°	Standard	34 Ga.	Round	50	90485A454	0000
				16 mm	7.3 mm					2.5 mm	TRS	No. 2	—	90°	Standard	34 Ga.	Round	50	90485A455	0000
				18 mm	7.3 mm					2.5 mm	TRS	No. 2	—	90°	Standard	34 Ga.	Round	50	90485A456	00000
				25 mm	7.3 mm					2.5 mm	TRS	No. 2	—	90°	Standard	34 Ga.	Round	50	90485A458	00000




						M4 Screw Size

						8 mm	8.4 mm			2.9 mm	TRS	No. 2	—	90°	Standard	30 Ga.	Round	50	90485A463	0000


						10 mm	8.4 mm			2.9 mm	TRS	No. 2	—	90°	Standard	30 Ga.	Round	50	90485A464	0000
						12 mm	8.4 mm			2.9 mm	TRS	No. 2	—	90°	Standard	30 Ga.	Round	50	90485A465	00000
						14 mm	8.4 mm			2.9 mm	TRS	No. 2	—	90°	Standard	30 Ga.	Round	50	90485A466	00000
						16 mm	8.4 mm			2.9 mm	TRS	No. 2	—	90°	Standard	30 Ga.	Round	50	90485A467	00000
						18 mm	8.4 mm			2.9 mm	TRS	No. 2	—	90°	Standard	30 Ga.	Round	50	90485A468	00000
						20 mm	8.4 mm			2.9 mm	TRS	No. 2	—	90°	Standard	30 Ga.	Round	25	90485A469	0000
						25 mm	8.4 mm			2.9 mm	TRS	No. 2	—	90°	Standard	30 Ga.	Round	25	90485A471	00000
						30 mm	8.4 mm			2.9 mm	TRS	No. 2	—	90°	Standard	30 Ga.	Round	25	90485A472	00000
						35 mm	8.4 mm	2.9 mm		TRS	No. 2	—	90°	Standard	30 Ga.	Round	10	90485A473	0000




								M5 Screw Size

								10 mm	9.3 mm	2.9 mm	TRS	No. 2	—	90°	Standard	21 Ga.	Round	25	90485A476	00000


								12 mm	9.3 mm	2.9 mm	TRS	No. 2	—	90°	Standard	21 Ga.	Round	25	90485A477	00000
								14 mm	9.3 mm	2.9 mm	TRS	No. 2	—	90°	Standard	21 Ga.	Round	25	90485A478	00000
								16 mm	9.3 mm	2.9 mm	TRS	No. 2	—	90°	Standard	21 Ga.	Round	25	90485A479	00000
								20 mm	9.3 mm	2.9 mm	TRS	No. 2	—	90°	Standard	21 Ga.	Round	25	90485A482	00000
								25 mm	9.3 mm	2.9 mm	TRS	No. 2	—	90°	Standard	21 Ga.	Round	10	90485A483	0000
								30 mm	9.3 mm	2.9 mm	TRS	No. 2	—	90°	Standard	21 Ga.	Round	10	90485A484	0000

Stainless Steel Torx Rounded Head Thread-Forming Screws for Plastic


	Tri-Lobe Shank Cross Section

Form threads in plastic with screws that resist stripping and rust. Also known as star drive screws, these withstand more torque than screws with a slotted, Phillips, square, or hex drive. They press threads into molded or cast holes without cracking or distorting the material. Use them to fasten plastic components, enclosures, and panels, and their rounded head creates a finished look.

Length is measured from under the head.

Black-Oxide 18-8 Stainless Steel—Typically chosen for their appearance, these screws have a dark, matte coating for a finished look. They resist rust in wet and outdoor environments but won't hold up to the harsh chemicals that 316 stainless steel can.

18-8 Stainless Steel—The choice for wet and outdoor environments, these screws resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.

		Head
	Lg.	Dia.	Ht.	Tapping Screw Type	Drive Size	Approx. Threads per In.	Drill Bit Size, mm	Shank Cross Section	Pkg. Qty.		Pkg.
Black-Oxide 18-8 Stainless Steel







				No. 4 Screw Size

				1/4"	0.219"	0.08"	TRS	T10	20	37 Ga.	Tri-Lobe	50	92727A110	00000


				5/16"	0.219"	0.08"	TRS	T10	20	37 Ga.	Tri-Lobe	50	92727A120	0000
				3/8"	0.219"	0.08"	TRS	T10	20	37 Ga.	Tri-Lobe	50	92727A130	0000
				1/2"	0.219"	0.08"	TRS	T10	20	37 Ga.	Tri-Lobe	25	92727A140	0000




						No. 6 Screw Size

						3/8"	0.27"	0.097"	TRS	T15	19	32 Ga.	Tri-Lobe	25	92727A150	0000


						1/2"	0.27"	0.097"	TRS	T15	19	32 Ga.	Tri-Lobe	25	92727A160	0000




								No. 8 Screw Size

								3/8"	0.322"	0.115"	TRS	T20	16	29 Ga.	Tri-Lobe	25	92727A170	0000


								1/2"	0.322"	0.115"	TRS	T20	16	29 Ga.	Tri-Lobe	25	92727A180	0000


								18-8 Stainless Steel







												No. 2 Screw Size

												5/16"	0.167"	0.062"	TRS	T8	28	48 Ga.	Tri-Lobe	50	96001A401	0000


												5/8"	0.167"	0.062"	TRS	T8	28	48 Ga.	Tri-Lobe	50	96001A402	00000




														No. 4 Screw Size

														3/16"	0.219"	0.08"	TRS	T10	20	37 Ga.	Tri-Lobe	50	96001A403	0000


														5/8"	0.219"	0.08"	TRS	T10	20	37 Ga.	Tri-Lobe	50	96001A404	00000




	No. 6 Screw Size

	5/16"														0.27"	0.097"	TRS	T15	19	32 Ga.	Tri-Lobe	25	96001A405	0000


	5/8"	0.27"													0.097"	TRS	T15	19	32 Ga.	Tri-Lobe	25	96001A406	0000




			No. 10 Screw Size

			1/2"												0.373"	0.133"	TRS	T25	14	21 Ga.	Tri-Lobe	10	96001A407	0000


			3/4"												0.373"	0.133"	TRS	T25	14	21 Ga.	Tri-Lobe	10	96001A408	0000
			1"												0.373"	0.133"	TRS	T25	14	21 Ga.	Tri-Lobe	10	96001A409	0000




					1/4" Screw Size

					1"										0.492"	0.175"	TRS	T30	10	5.5	Tri-Lobe	5	96001A411	0000


					1 1/4"										0.492"	0.175"	TRS	T30	10	5.5	Tri-Lobe	5	96001A412	0000
					1 1/2"										0.492"	0.175"	TRS	T30	10	5.5	Tri-Lobe	5	96001A413	0000
					2"										0.492"	0.175"	TRS	T30	10	5.5	Tri-Lobe	5	96001A414	00000

Steel Torx Flat Head Thread-Forming Screws for Plastic

Tri-Lobe Shank Cross

Section

Prevent drivers from slipping as you thread these screws into plastic to secure components with countersunk holes. Also known as star drive, the six-lobe Torx recess withstands more torque than slotted, Phillips, or hex drives. These screws press threads into molded or cast holes without cracking or distorting material. Use them to fasten plastic parts, enclosures, and panels; the flat, beveled head sits flush in holes.

Length is measured from the top of the head.

Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.

		Head
	Lg.	Dia.	Ht.	Tapping Screw Type	Drive Size	Approx. Threads per In.	Countersink Angle	Flat Head Profile	Drill Bit Size	Shank Cross Section	Pkg. Qty.		Pkg.
Black-Oxide Steel







				No. 2 Screw Size

				1/4"	0.162"	0.051"	TRS	T6	28	82°	Standard	5/64"	Tri-Lobe	50	95893A376	000000


				3/8"	0.162"	0.051"	TRS	T6	28	82°	Standard	5/64"	Tri-Lobe	100	95893A387	00000




						No. 4 Screw Size

						3/8"	0.212"	0.067"	TRS	T8	20	82°	Standard	37 Ga.	Tri-Lobe	50	95893A388	0000


						1/2"	0.212"	0.067"	TRS	T8	20	82°	Standard	37 Ga.	Tri-Lobe	50	95893A373	00000




								No. 6 Screw Size

								3/8"	0.262"	0.083"	TRS	T10	19	82°	Standard	1/8"	Tri-Lobe	50	95893A389	00000


								1/2"	0.262"	0.083"	TRS	T10	19	82°	Standard	1/8"	Tri-Lobe	50	95893A374	00000




										No. 8 Screw Size

										1/2"	0.312"	0.1"	TRS	T15	16	82°	Standard	23 Ga.	Tri-Lobe	50	95893A375	00000


										3/4"	0.312"	0.1"	TRS	T15	16	82°	Standard	23 Ga.	Tri-Lobe	50	95893A383	00000




												No. 10 Screw Size

												5/8"	0.362"	0.116"	TRS	T20	14	82°	Standard	15 Ga.	Tri-Lobe	50	95893A394	00000


												3/4"	0.362"	0.116"	TRS	T20	14	82°	Standard	15 Ga.	Tri-Lobe	50	95893A384	00000
												1"	0.362"	0.116"	TRS	T20	14	82°	Standard	15 Ga.	Tri-Lobe	50	95893A372	00000


												Zinc-Plated Steel







No. 2 Screw Size

5/16"	0.162"															0.051"	TRS	T6	28	82°	Standard	5/64"	Tri-Lobe	100	95893A391	00000


3/8"	0.162"															0.051"	TRS	T6	28	82°	Standard	5/64"	Tri-Lobe	100	95893A385	0000




		No. 4 Screw Size

		5/16"	0.212"													0.067"	TRS	T8	20	82°	Standard	37 Ga.	Tri-Lobe	100	95893A392	00000


		5/8"	0.212"													0.067"	TRS	T8	20	82°	Standard	37 Ga.	Tri-Lobe	100	95893A393	00000
		1"	0.212"													0.067"	TRS	T8	20	82°	Standard	37 Ga.	Tri-Lobe	100	95893A371	00000




				No. 6 Screw Size

				3/8"	0.262"											0.083"	TRS	T10	19	82°	Standard	1/8"	Tri-Lobe	100	95893A386	00000


				1 1/4"	0.262"											0.083"	TRS	T10	19	82°	Standard	1/8"	Tri-Lobe	100	95893A378	00000




						No. 8 Screw Size

						1 1/4"	0.312"									0.1"	TRS	T15	16	82°	Standard	23 Ga.	Tri-Lobe	50	95893A379	00000


						1 1/2"	0.312"									0.1"	TRS	T15	16	82°	Standard	23 Ga.	Tri-Lobe	50	95893A377	00000




								1/4" Screw Size

								3/4"	0.477"							0.153"	TRS	T27	10	82°	Standard	A	Tri-Lobe	50	95893A382	00000


								1 1/4"	0.477"							0.153"	TRS	T27	10	82°	Standard	A	Tri-Lobe	25	95893A381	0000

Steel Phillips Flat Head Thread-Forming Screws for Plastic

Tri-Lobe Shank Cross

Section

Thread these screws into plastic and secure components, enclosures, and panels with countersunk holes. The head is flat on top and beveled underneath to sit flush with surfaces. The Phillips drive handles enough torque to keep drivers from slipping.

Length is measured from the top of the head.

Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.

		Head
	Lg.	Dia.	Ht.	Tapping Screw Type	Drive Size	Approx. Threads per In.	Countersink Angle	Flat Head Profile	Drill Bit Size	Shank Cross Section	Pkg. Qty.		Pkg.
Black-Oxide Steel







				No. 4 Screw Size

				5/16"	0.212"	0.067"	TRS	No. 1	20	82°	Standard	37 Ga.	Tri-Lobe	50	90434A188	00000


				3/8"	0.212"	0.067"	TRS	No. 1	20	82°	Standard	37 Ga.	Tri-Lobe	50	90434A179	0000
				1/2"	0.212"	0.067"	TRS	No. 1	20	82°	Standard	37 Ga.	Tri-Lobe	50	90434A121	0000
				3/4"	0.212"	0.067"	TRS	No. 1	20	82°	Standard	37 Ga.	Tri-Lobe	50	90434A174	00000




						No. 6 Screw Size

						3/8"	0.262"	0.083"	TRS	No. 2	19	82°	Standard	1/8"	Tri-Lobe	50	90434A181	0000


						1/2"	0.262"	0.083"	TRS	No. 2	19	82°	Standard	1/8"	Tri-Lobe	100	90434A122	00000
						3/4"	0.262"	0.083"	TRS	No. 2	19	82°	Standard	1/8"	Tri-Lobe	50	90434A175	0000
						1"	0.262"	0.083"	TRS	No. 2	19	82°	Standard	1/8"	Tri-Lobe	100	90434A114	00000




								No. 8 Screw Size

								1/2"	0.312"	0.1"	TRS	No. 2	16	82°	Standard	23 Ga.	Tri-Lobe	50	90434A123	0000


								5/8"	0.312"	0.1"	TRS	No. 2	16	82°	Standard	23 Ga.	Tri-Lobe	50	90434A194	0000


								Zinc-Plated Steel







												No. 2 Screw Size

												1/4"	0.162"	0.051"	TRS	No. 1	28	82°	Standard	5/64"	Tri-Lobe	50	90434A124	0000


												3/8"	0.162"	0.051"	TRS	No. 1	28	82°	Standard	5/64"	Tri-Lobe	100	90434A176	00000




														No. 4 Screw Size

														1/4"	0.212"	0.067"	TRS	No. 1	20	82°	Standard	37 Ga.	Tri-Lobe	100	90434A125	00000


														5/16"	0.212"	0.067"	TRS	No. 1	20	82°	Standard	37 Ga.	Tri-Lobe	100	90434A187	0000
														3/8"	0.212"	0.067"	TRS	No. 1	20	82°	Standard	37 Ga.	Tri-Lobe	100	90434A177	0000
7/16"														0.212"	0.067"	TRS	No. 1	20	82°	Standard	37 Ga.	Tri-Lobe	50	90434A199	0000
1/2"	0.212"													0.067"	TRS	No. 1	20	82°	Standard	37 Ga.	Tri-Lobe	100	90434A115	0000
3/4"	0.212"													0.067"	TRS	No. 1	20	82°	Standard	37 Ga.	Tri-Lobe	100	90434A168	00000




		No. 6 Screw Size

		3/8"	0.262"											0.083"	TRS	No. 2	19	82°	Standard	1/8"	Tri-Lobe	100	90434A178	0000


		7/16"	0.262"											0.083"	TRS	No. 2	19	82°	Standard	1/8"	Tri-Lobe	100	90434A201	0000
		1/2"	0.262"											0.083"	TRS	No. 2	19	82°	Standard	1/8"	Tri-Lobe	100	90434A116	00000
		5/8"	0.262"											0.083"	TRS	No. 2	19	82°	Standard	1/8"	Tri-Lobe	100	90434A191	00000
		3/4"	0.262"											0.083"	TRS	No. 2	19	82°	Standard	1/8"	Tri-Lobe	50	90434A169	0000
		1"	0.262"											0.083"	TRS	No. 2	19	82°	Standard	1/8"	Tri-Lobe	100	90434A111	0000
		1 1/4"	0.262"											0.083"	TRS	No. 2	19	82°	Standard	1/8"	Tri-Lobe	100	90434A137	0000




				No. 8 Screw Size

				1/2"	0.312"									0.1"	TRS	No. 2	16	82°	Standard	23 Ga.	Tri-Lobe	50	90434A117	0000


				5/8"	0.312"									0.1"	TRS	No. 2	16	82°	Standard	23 Ga.	Tri-Lobe	100	90434A192	0000
				3/4"	0.312"									0.1"	TRS	No. 2	16	82°	Standard	23 Ga.	Tri-Lobe	50	90434A171	0000
				1"	0.312"									0.1"	TRS	No. 2	16	82°	Standard	23 Ga.	Tri-Lobe	100	90434A112	00000
				1 1/2"	0.312"									0.1"	TRS	No. 2	16	82°	Standard	23 Ga.	Tri-Lobe	25	90434A134	0000




						No. 10 Screw Size

						1/2"	0.362"							0.116"	TRS	No. 2	14	82°	Standard	15 Ga.	Tri-Lobe	50	90434A118	0000


						5/8"	0.362"							0.116"	TRS	No. 2	14	82°	Standard	15 Ga.	Tri-Lobe	100	90434A193	00000
						3/4"	0.362"							0.116"	TRS	No. 2	14	82°	Standard	15 Ga.	Tri-Lobe	100	90434A172	00000
						1 1/4"	0.362"							0.116"	TRS	No. 2	14	82°	Standard	15 Ga.	Tri-Lobe	25	90434A138	0000
						2"	0.362"	0.116"						TRS	No. 2	14	82°	Standard	15 Ga.	Tri-Lobe	25	90434A162	00000




								1/4" Screw Size

								1/2"	0.462"	0.148"	TRS			No. 3	10	82°	Standard	A	Tri-Lobe	25	90434A119	0000


								3/4"	0.462"	0.148"	TRS			No. 3	10	82°	Standard	A	Tri-Lobe	25	90434A173	0000
								1"	0.462"	0.148"	TRS			No. 3	10	82°	Standard	A	Tri-Lobe	50	90434A113	00000

Stainless Steel Torx Plus Flat Head Thread-Forming Screws for Plastic

Tri-Lobe Shank Cross

Section

These corrosion-resistant screws give you the best grip while fastening components with countersunk holes. With larger lobes than Torx drive, Torx Plus handles even more torque to prevent slipping and stripping the drive. These screws press threads into molded or cast holes, so you can fasten plastic components, enclosures, and panels without using an insert. Their flat, beveled head sits flush in the hole.

18-8 Stainless Steel—The choice for wet and outdoor environments, these screws resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.

		Head
	Lg.	Dia.	Ht.	Tapping Screw Type	Drive Size	Approx. Threads per In.	Countersink Angle	Flat Head Profile	Drill Bit Size	Shank Cross Section	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				No. 0 Screw Size

				3/16"	0.112"	0.035"	TRS	IP3, T3	42	82°	Standard	55 Ga.	Tri-Lobe	50	95893A501	000000


				1/4"	0.112"	0.035"	TRS	IP3, T3	42	82°	Standard	55 Ga.	Tri-Lobe	50	95893A505	00000
				3/8"	0.112"	0.035"	TRS	IP3, T3	42	82°	Standard	55 Ga.	Tri-Lobe	50	95893A510	00000




						No. 2 Screw Size

						1/4"	0.162"	0.051"	TRS	IP6, T6	28	82°	Standard	47 Ga.	Tri-Lobe	50	95893A550	00000


						1/2"	0.162"	0.051"	TRS	IP6, T6	28	82°	Standard	47 Ga.	Tri-Lobe	50	95893A560	00000




								No. 4 Screw Size

								1/4"	0.212"	0.067"	TRS	IP8, T8	20	82°	Standard	37 Ga.	Tri-Lobe	50	95893A601	00000


								3/8"	0.212"	0.067"	TRS	IP8, T8	20	82°	Standard	37 Ga.	Tri-Lobe	50	95893A605	00000
								1/2"	0.212"	0.067"	TRS	IP8, T8	20	82°	Standard	37 Ga.	Tri-Lobe	50	95893A615	00000




										No. 6 Screw Size

										1/4"	0.262"	0.083"	TRS	IP10, T10	19	82°	Standard	1/8"	Tri-Lobe	50	95893A705	00000


										1/2"	0.262"	0.083"	TRS	IP10, T10	19	82°	Standard	1/8"	Tri-Lobe	50	95893A715	00000
										3/4"	0.262"	0.083"	TRS	IP10, T10	19	82°	Standard	1/8"	Tri-Lobe	50	95893A725	00000




												No. 8 Screw Size

												1/4"	0.312"	0.1"	TRS	IP15, T15	16	82°	Standard	23 Ga.	Tri-Lobe	50	95893A805	00000


												1/2"	0.312"	0.1"	TRS	IP15, T15	16	82°	Standard	23 Ga.	Tri-Lobe	50	95893A815	00000
												3/4"	0.312"	0.1"	TRS	IP15, T15	16	82°	Standard	23 Ga.	Tri-Lobe	50	95893A825	00000




														No. 10 Screw Size

														1/2"	0.362"	0.116"	TRS	IP20, T20	14	82°	Standard	15 Ga.	Tri-Lobe	25	95893A920	00000


3/4"	0.362"													0.116"	TRS	IP20, T20	14	82°	Standard	15 Ga.	Tri-Lobe	25	95893A930	00000
1 1/4"	0.362"													0.116"	TRS	IP20, T20	14	82°	Standard	15 Ga.	Tri-Lobe	25	95893A950	00000
1 1/2"	0.362"													0.116"	TRS	IP20, T20	14	82°	Standard	15 Ga.	Tri-Lobe	25	95893A970	00000

Steel Flanged Hex Head Thread-Forming Screws for Plastic

Tri-Lobe Shank Cross

Section

Thread these screws into molded or cast holes in plastic using a nutdriver or socket. They fasten enclosures, panels, and other plastic components without installing an insert or cracking your material. The flanged head flanged hex head gives you a high-torque grip and spreads the load to prevent deforming thin plastic.

Length is measured from under the head.

Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.

		Head
	Lg.	Wd.	Ht.	Flange Dia.	Tapping Screw Type	Approx. Threads per In.	Drill Bit Size	Shank Cross Section	Pkg. Qty.		Pkg.
Zinc-Plated Steel







				No. 4 Screw Size

				1/4"	0.188"	0.079"	0.243"	TRS	20	44 Ga.	Tri-Lobe	100	92400A110	00000


				5/16"	0.188"	0.079"	0.243"	TRS	20	44 Ga.	Tri-Lobe	100	92400A120	0000
				3/8"	0.188"	0.079"	0.243"	TRS	20	44 Ga.	Tri-Lobe	50	92400A130	0000




						No. 6 Screw Size

						1/4"	1/4"	0.118"	0.328"	TRS	19	32 Ga.	Tri-Lobe	100	92400A140	0000


						3/8"	1/4"	0.118"	0.328"	TRS	19	32 Ga.	Tri-Lobe	100	92400A150	0000
						1/2"	1/4"	0.118"	0.328"	TRS	19	32 Ga.	Tri-Lobe	50	92400A160	0000
						5/8"	1/4"	0.118"	0.328"	TRS	19	32 Ga.	Tri-Lobe	50	92400A170	0000
						3/4"	1/4"	0.118"	0.328"	TRS	19	32 Ga.	Tri-Lobe	50	92400A180	0000
						1"	1/4"	0.118"	0.328"	TRS	19	32 Ga.	Tri-Lobe	50	92400A190	0000




								No. 8 Screw Size

								1/4"	1/4"	0.141"	0.348"	TRS	16	29 Ga.	Tri-Lobe	50	92400A210	0000


								3/8"	1/4"	0.141"	0.348"	TRS	16	29 Ga.	Tri-Lobe	50	92400A220	0000
								1/2"	1/4"	0.141"	0.348"	TRS	16	29 Ga.	Tri-Lobe	50	92400A230	0000
								5/8"	1/4"	0.141"	0.348"	TRS	16	29 Ga.	Tri-Lobe	50	92400A240	0000
								3/4"	1/4"	0.141"	0.348"	TRS	16	29 Ga.	Tri-Lobe	50	92400A250	0000
								1"	1/4"	0.141"	0.348"	TRS	16	29 Ga.	Tri-Lobe	50	92400A260	0000
								1 1/2"	1/4"	0.141"	0.348"	TRS	16	29 Ga.	Tri-Lobe	25	92400A270	0000




										No. 10 Screw Size

										3/8"	0.312"	0.151"	0.414"	TRS	14	21 Ga.	Tri-Lobe	50	92400A280	0000


										1/2"	0.312"	0.151"	0.414"	TRS	14	21 Ga.	Tri-Lobe	50	92400A290	0000
										5/8"	0.312"	0.151"	0.414"	TRS	14	21 Ga.	Tri-Lobe	50	92400A310	0000
										3/4"	0.312"	0.151"	0.414"	TRS	14	21 Ga.	Tri-Lobe	25	92400A320	0000
										1"	0.312"	0.151"	0.414"	TRS	14	21 Ga.	Tri-Lobe	50	92400A330	0000




												No. 12 Screw Size

												7/16"	0.312"	0.194"	0.432"	TRS	11	3/16"	Tri-Lobe	50	92400A340	0000


1/2"	0.312"											0.194"	0.432"	TRS	11	3/16"	Tri-Lobe	50	92400A350	0000
5/8"	0.312"											0.194"	0.432"	TRS	11	3/16"	Tri-Lobe	25	92400A360	0000
3/4"	0.312"											0.194"	0.432"	TRS	11	3/16"	Tri-Lobe	25	92400A370	0000
1"	0.312"											0.194"	0.432"	TRS	11	3/16"	Tri-Lobe	25	92400A380	0000
1 1/4"	0.312"	0.194"										0.432"	TRS	11	3/16"	Tri-Lobe	25	92400A390	00000
1 1/2"	0.312"	0.194"	0.432"									TRS	11	3/16"	Tri-Lobe	25	92400A410	0000




		1/4" Screw Size

		1/2"	3/8"									0.24"	0.52"	TRS	10	5.5 mm	Tri-Lobe	25	92400A420	0000


		5/8"	3/8"									0.24"	0.52"	TRS	10	5.5 mm	Tri-Lobe	25	92400A430	0000
		3/4"	3/8"	0.24"								0.52"	TRS	10	5.5 mm	Tri-Lobe	25	92400A440	0000
		1"	3/8"	0.24"	0.52"							TRS	10	5.5 mm	Tri-Lobe	25	92400A450	0000
		1 1/4"	3/8"	0.24"	0.52"							TRS	10	5.5 mm	Tri-Lobe	10	92400A460	0000

Steel Torx Plus Flat Head Thread-Forming Screws for Plastic

Tri-Lobe Shank Cross

Section

Get the best grip while fastening components that have countersunk holes. With larger lobes than Torx drive, Torx Plus handles even more torque to prevent slipping and stripping the drive. These screws press threads into molded or cast holes, so you can fasten plastic components, enclosures, and panels without using an insert. Their flat, beveled head sits flush in the hole.

Length is measured from under the head.

Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.

		Head
	Lg.	Dia.	Ht.	Tapping Screw Type	Drive Size	Approx. Threads per In.	Countersink Angle	Flat Head Profile	Drill Bit Size	Shank Cross Section	Pkg. Qty.		Pkg.
Zinc-Plated Steel







				No. 0 Screw Size

				3/16"	0.112"	0.035"	TRS	IP3, T3	42	82°	Standard	56 Ga.	Tri-Lobe	50	95893A113	000000


				1/4"	0.112"	0.035"	TRS	IP3, T3	42	82°	Standard	56 Ga.	Tri-Lobe	50	95893A116	00000
				3/8"	0.112"	0.035"	TRS	IP3, T3	42	82°	Standard	56 Ga.	Tri-Lobe	50	95893A119	00000




						No. 2 Screw Size

						1/4"	0.162"	0.051"	TRS	IP6, T6	28	82°	Standard	48 Ga.	Tri-Lobe	50	95893A153	00000


						1/2"	0.162"	0.051"	TRS	IP6, T6	28	82°	Standard	48 Ga.	Tri-Lobe	50	95893A156	00000




								No. 4 Screw Size

								1/4"	0.212"	0.067"	TRS	IP8, T8	20	82°	Standard	44 Ga.	Tri-Lobe	50	95893A212	0000


								3/8"	0.212"	0.067"	TRS	IP8, T8	20	82°	Standard	44 Ga.	Tri-Lobe	50	95893A215	0000
								1/2"	0.212"	0.067"	TRS	IP8, T8	20	82°	Standard	44 Ga.	Tri-Lobe	50	95893A218	0000




										No. 6 Screw Size

										1/4"	0.262"	0.083"	TRS	IP10, T10	19	82°	Standard	32 Ga.	Tri-Lobe	50	95893A252	0000


										1/2"	0.262"	0.083"	TRS	IP10, T10	19	82°	Standard	32 Ga.	Tri-Lobe	50	95893A255	0000
										3/4"	0.262"	0.083"	TRS	IP10, T10	19	82°	Standard	32 Ga.	Tri-Lobe	50	95893A258	0000




												No. 8 Screw Size

												1/4"	0.312"	0.1"	TRS	IP15, T15	16	82°	Standard	29 Ga.	Tri-Lobe	50	95893A321	00000


												1/2"	0.312"	0.1"	TRS	IP15, T15	16	82°	Standard	29 Ga.	Tri-Lobe	50	95893A325	00000
												3/4"	0.312"	0.1"	TRS	IP15, T15	16	82°	Standard	29 Ga.	Tri-Lobe	50	95893A329	00000




														No. 10 Screw Size

														1/2"	0.362"	0.116"	TRS	IP20, T20	14	82°	Standard	15 Ga.	Tri-Lobe	50	95893A356	00000


3/4"	0.362"													0.116"	TRS	IP20, T20	14	82°	Standard	15 Ga.	Tri-Lobe	50	95893A360	00000
1 1/4"	0.362"													0.116"	TRS	IP20, T20	14	82°	Standard	15 Ga.	Tri-Lobe	50	95893A364	00000
1 1/2"	0.362"													0.116"	TRS	IP20, T20	14	82°	Standard	15 Ga.	Tri-Lobe	50	95893A368	00000

Stainless Steel Flanged Hex Head Thread-Forming Screws for Plastic

Tri-Lobe Shank Cross

Section

These corrosion-resistant screws thread directly into molded or cast holes using a nutdriver or socket. They install without an insert and won’t crack plastic when fastening enclosures, panels, and other components. The flanged hex head gives you a high-torque grip and spreads the load to prevent crushing thin material.

Length is measured from under the head.

18-8 Stainless Steel—The choice for wet and outdoor environments, these screws resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.

		Head
	Lg.	Wd.	Ht.	Flange Dia.	Tapping Screw Type	Approx. Threads per In.	Drill Bit Size	Shank Cross Section	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				No. 6 Screw Size

				3/8"	1/4"	0.118"	0.328"	TRS	19	32 Ga.	Tri-Lobe	25	92400A470	00000


				1/2"	1/4"	0.118"	0.328"	TRS	19	32 Ga.	Tri-Lobe	25	92400A480	0000




						No. 8 Screw Size

						1/2"	1/4"	0.141"	0.348"	TRS	16	29 Ga.	Tri-Lobe	25	92400A510	0000


						1"	1/4"	0.141"	0.348"	TRS	16	29 Ga.	Tri-Lobe	10	92400A520	0000
						1 1/4"	1/4"	0.141"	0.348"	TRS	16	29 Ga.	Tri-Lobe	10	92400A530	0000