Lath Screws | McMaster-Carr

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172 Products

About Tapping Screws

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

Fastener Head Type

Flanged

Distribute pressure evenly to prevent damaging material

64 products

Performance

Self-Piercing

Start a hole in sheet metal up to 0.050" thick

130 products

Performance

Corrosion Resistant

Won't rust in wet and outdoor environments

108 products

Chemical Resistant

Maintain their strength when exposed to most chemicals

31 products

Steel Oversized Phillips Rounded Head Drilling Screws

Secure metal sheets, mesh, and other thin materials to metal framing studs without tearing. Also known as lath screws, the head is wider than other rounded styles to keep material flat against the framing. These screws drill and fasten in one step. Their Phillips drive withstands less torque than a hex drive, so drill with even, steady pressure.

Length is measured from under the head.

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

		Drill Tip
	Lg.	Point Size	Lg.	Head Ht.	Flange Dia.	Max. Drilling Thk.	Tapping Screw Type	Drive Size	Approx. Threads per In.	Pkg. Qty.		Pkg.
Zinc-Plated Steel







				No. 8 Screw Size

				1/2"	No. 2	3/16"	0.097"	0.44"	0.098"	BSD	No. 2	18	100	91515A100	00000


				3/4"	No. 2	3/16"	0.097"	0.44"	0.098"	BSD	No. 2	18	100	91515A200	0000
				1"	No. 2	3/16"	0.097"	0.44"	0.098"	BSD	No. 2	18	100	91515A300	00000
				1 1/4"	No. 2	3/16"	0.097"	0.44"	0.098"	BSD	No. 2	18	100	91515A400	00000
				1 3/8"	No. 2	5/32"	0.097"	0.44"	0.098"	BSD	No. 2	18	50	91515A101	00000
				1 5/8"	No. 2	5/32"	0.097"	0.44"	0.098"	BSD	No. 2	18	25	91515A120	0000
				1 3/4"	No. 2	5/32"	0.097"	0.44"	0.098"	BSD	No. 2	18	25	91515A260	00000
				1 7/8"	No. 2	5/32"	0.097"	0.44"	0.098"	BSD	No. 2	18	25	91515A920	0000
				2"	No. 2	5/32"	0.097"	0.44"	0.098"	BSD	No. 2	18	25	91515A420	00000
				2 1/4"	No. 2	5/32"	0.097"	0.44"	0.098"	BSD	No. 2	18	25	91515A500	00000
				2 1/2"	No. 2	5/32"	0.097"	0.44"	0.098"	BSD	No. 2	18	25	91515A570	00000


				3"	No. 2	5/32"	0.097"	0.44"	0.098"	BSD	No. 2	18	25	91515A580	00000
				3 1/2"	No. 2	5/32"	0.097"	0.44"	0.098"	BSD	No. 2	18	10	91515A600	00000
				4"	No. 2	5/32"	0.097"	0.44"	0.098"	BSD	No. 2	18	10	91515A700	00000
				5"	No. 2	5/32"	0.097"	0.44"	0.098"	BSD	No. 2	18	10	91515A710	00000




						No. 10 Screw Size

						3/8"	No. 2	13/64"	0.089"	0.433"	0.11"	BSD	No. 2	16	50	91515A790	00000


						1 3/4"	No. 3	1/4"	0.089"	0.433"	0.175"	BSD	No. 2	16	25	91515A020	00000
						2"	No. 3	1/4"	0.089"	0.433"	0.175"	BSD	No. 2	16	25	91515A090	00000
						2 1/4"	No. 3	1/4"	0.089"	0.433"	0.175"	BSD	No. 2	16	25	91515A270	00000
						2 1/2"	No. 3	1/4"	0.089"	0.433"	0.175"	BSD	No. 2	16	10	91515A330	0000
						2 3/4"	No. 3	1/4"	0.089"	0.433"	0.175"	BSD	No. 2	16	10	91515A430	00000
						3"	No. 3	1/4"	0.089"	0.433"	0.175"	BSD	No. 2	16	10	91515A440	00000
						3 1/2"	No. 3	1/4"	0.089"	0.433"	0.175"	BSD	No. 2	16	10	91515A271	00000
						4"	No. 3	1/4"	0.089"	0.433"	0.175"	BSD	No. 2	16	10	91515A910	00000
						4 1/2"	No. 3	1/4"	0.089"	0.433"	0.175"	BSD	No. 2	16	10	91515A960	00000
						5"	No. 3	1/4"	0.089"	0.433"	0.175"	BSD	No. 2	16	5	91515A970	00000




								No. 12 Screw Size

								1/2"	No. 2	1/4"	0.113"	0.452"	0.11"	BSD	No. 2	14	25	91515A040	00000


								5/8"	No. 2	1/4"	0.113"	0.452"	0.11"	BSD	No. 2	14	25	91515A347	00000
								1 1/4"	No. 3	5/16"	0.113"	0.452"	0.21"	BSD	No. 2	14	25	91515A810	00000
								1 1/2"	No. 3	5/16"	0.113"	0.452"	0.21"	BSD	No. 2	14	25	91515A396	00000
								2"	No. 3	5/16"	0.113"	0.452"	0.21"	BSD	No. 2	14	10	91515A397	0000
								2 1/2"	No. 3	5/16"	0.113"	0.452"	0.21"	BSD	No. 2	14	10	91515A412	00000
								3"	No. 3	5/16"	0.113"	0.452"	0.21"	BSD	No. 2	14	10	91515A130	00000
								3 1/2"	No. 3	5/16"	0.113"	0.452"	0.21"	BSD	No. 2	14	10	91515A427	00000
								4"	No. 3	5/16"	0.113"	0.452"	0.21"	BSD	No. 2	14	5	91515A460	0000




								1/4" Screw Size

		1 1/4"	No. 3					5/16"	0.131"	0.521"	1/4"	BSD	No. 3	14	25	91515A750	00000


		1 1/2"	No. 3					5/16"	0.131"	0.521"	1/4"	BSD	No. 3	14	10	91515A760	0000
		2"	No. 3					5/16"	0.131"	0.521"	1/4"	BSD	No. 3	14	5	91515A030	00000
		2 1/2"	No. 3					5/16"	0.131"	0.521"	1/4"	BSD	No. 3	14	5	91515A530	0000
		3"	No. 3					5/16"	0.131"	0.521"	1/4"	BSD	No. 3	14	5	91515A390	00000
		3 1/2"	No. 3					5/16"	0.131"	0.521"	1/4"	BSD	No. 3	14	5	91515A210	00000
		4"	No. 3					5/16"	0.131"	0.521"	1/4"	BSD	No. 3	14	5	91515A660	00000

Stainless Steel Oversized Phillips Rounded Head Screws for Sheet Metal

The wide head on these corrosion-resistant screws distributes pressure to prevent crushing and dimpling sheet metal. Their pointed tip starts a hole in sheets up to 0.025" thick, but for thicker material you’ll need to drill first. The Phillips drive handles enough torque to keep drivers from slipping.

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.

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







				No. 0 Screw Size

				1/4"	0.131"	0.037"	AB	No. 0	52	55 Ga.	50	93406A008	00000


				3/8"	0.131"	0.037"	AB	No. 0	52	55 Ga.	50	93406A012	0000
				1/2"	0.131"	0.037"	AB	No. 0	52	55 Ga.	50	93406A017	0000




						No. 1 Screw Size

						1/4"	0.164"	0.045"	AB	No. 0	48	52 Ga.	50	93406A040	0000


						3/8"	0.164"	0.045"	AB	No. 0	48	52 Ga.	50	93406A044	0000
						1/2"	0.164"	0.045"	AB	No. 0	48	52 Ga.	50	93406A048	0000




								No. 2 Screw Size

								1/4"	0.194"	0.053"	A	No. 1	32	48 Ga.	100	93406A071	0000


								3/8"	0.194"	0.053"	A	No. 1	32	48 Ga.	100	93406A075	0000
								1/2"	0.194"	0.053"	A	No. 1	32	48 Ga.	100	93406A079	0000
								5/8"	0.194"	0.053"	A	No. 1	32	48 Ga.	100	93406A083	0000
								3/4"	0.194"	0.053"	A	No. 1	32	48 Ga.	100	93406A086	0000




										No. 4 Screw Size

										3/16"	0.257"	0.069"	A	No. 1	24	44 Ga.	50	93406A095	0000


										1/4"	0.257"	0.069"	A	No. 1	24	44 Ga.	100	93406A106	0000
										3/8"	0.257"	0.069"	A	No. 1	24	44 Ga.	100	93406A108	0000
										1/2"	0.257"	0.069"	A	No. 1	24	44 Ga.	100	93406A110	0000
										5/8"	0.257"	0.069"	A	No. 1	24	44 Ga.	100	93406A100	0000
										3/4"	0.257"	0.069"	A	No. 1	24	44 Ga.	100	93406A102	0000
										1"	0.257"	0.069"	A	No. 1	24	44 Ga.	100	93406A104	0000




												No. 6 Screw Size

												3/16"	0.321"	0.086"	A	No. 2	18	32 Ga.	50	93406A140	0000


												1/4"	0.321"	0.086"	AB	No. 2	18	32 Ga.	100	93406A144	0000
												5/16"	0.321"	0.086"	A	No. 2	18	32 Ga.	100	93406A401	0000
3/8"												0.321"	0.086"	A	No. 2	18	32 Ga.	100	93406A146	0000
7/16"	0.321"											0.086"	A	No. 2	18	32 Ga.	100	93406A402	0000
1/2"	0.321"											0.086"	A	No. 2	18	32 Ga.	100	93406A148	0000
5/8"	0.321"											0.086"	A	No. 2	18	32 Ga.	100	93406A150	0000
3/4"	0.321"											0.086"	A	No. 2	18	32 Ga.	100	93406A151	0000
7/8"	0.321"	0.086"										A	No. 2	18	32 Ga.	100	93406A403	0000
1"	0.321"	0.086"	A									No. 2	18	32 Ga.	100	93406A153	0000
1 1/4"	0.321"	0.086"	A									No. 2	18	32 Ga.	100	93406A155	00000


1 1/2"	0.321"	0.086"	A									No. 2	18	32 Ga.	100	93406A158	00000
2"	0.321"	0.086"	A									No. 2	18	32 Ga.	100	93406A404	00000




		No. 8 Screw Size

		3/8"	0.384"	0.102"	AB							No. 2	15	29 Ga.	100	93406A192	0000


		7/16"	0.384"	0.102"	A							No. 2	15	29 Ga.	100	93406A405	0000
		1/2"	0.384"	0.102"	A							No. 2	15	29 Ga.	100	93406A194	0000
		5/8"	0.384"	0.102"	A							No. 2	15	29 Ga.	100	93406A196	0000
		3/4"	0.384"	0.102"	A							No. 2	15	29 Ga.	100	93406A197	00000
		7/8"	0.384"	0.102"	A							No. 2	15	29 Ga.	100	93406A406	00000
		1"	0.384"	0.102"	A							No. 2	15	29 Ga.	100	93406A199	00000
		1 1/4"	0.384"	0.102"	A							No. 2	15	29 Ga.	50	93406A201	0000
		1 1/2"	0.384"	0.102"	A	No. 2						15	29 Ga.	50	93406A203	00000
		1 3/4"	0.384"	0.102"	A	No. 2	15					29 Ga.	50	93406A204	00000
		2"	0.384"	0.102"	A	No. 2	15					29 Ga.	50	93406A205	00000




				No. 10 Screw Size

				3/8"	0.448"	0.118"	AB					No. 2	12	21 Ga.	100	93406A240	00000


				1/2"	0.448"	0.118"	A					No. 2	12	21 Ga.	100	93406A242	00000
				5/8"	0.448"	0.118"	A					No. 2	12	21 Ga.	100	93406A244	00000
				3/4"	0.448"	0.118"	A	No. 2				12	21 Ga.	50	93406A245	0000
				7/8"	0.448"	0.118"	A	No. 2	12			21 Ga.	50	93406A407	0000
				1"	0.448"	0.118"	A	No. 2	12			21 Ga.	50	93406A247	0000
				1 1/4"	0.448"	0.118"	A	No. 2	12			21 Ga.	50	93406A249	00000
				1 1/2"	0.448"	0.118"	A	No. 2	12			21 Ga.	50	93406A251	00000
				1 3/4"	0.448"	0.118"	A	No. 2	12			21 Ga.	50	93406A252	00000
				2"	0.448"	0.118"	A	No. 2	12			21 Ga.	50	93406A253	00000
				2 1/4"	0.448"	0.118"	A	No. 2	12			21 Ga.	50	93406A408	00000


				2 1/2"	0.448"	0.118"	A	No. 2	12			21 Ga.	25	93406A254	00000
				2 3/4"	0.448"	0.118"	A	No. 2	12			21 Ga.	25	93406A409	00000
				3"	0.448"	0.118"	A	No. 2	12			21 Ga.	25	93406A258	00000




						No. 12 Screw Size

						1/2"	0.511"	0.134"	A	No. 3	11	3/16"	50	93406A290	0000


						5/8"	0.511"	0.134"	A	No. 3	11	3/16"	50	93406A411	00000
						3/4"	0.511"	0.134"	A	No. 3	11	3/16"	50	93406A294	00000
						1"	0.511"	0.134"	A	No. 3	11	3/16"	50	93406A296	00000
						1 1/4"	0.511"	0.134"	A	No. 3	11	3/16"	25	93406A298	0000
						1 1/2"	0.511"	0.134"	A	No. 3	11	3/16"	25	93406A302	00000
						1 3/4"	0.511"	0.134"	A	No. 3	11	3/16"	50	93406A412	00000
						2"	0.511"	0.134"	A	No. 3	11	3/16"	25	93406A304	0000
						2 1/2"	0.511"	0.134"	A	No. 3	11	3/16"	25	93406A307	00000
						3"	0.511"	0.134"	A	No. 3	11	3/16"	10	93406A310	0000




								No. 14 Screw Size

1/2"	0.557"							0.134"	AB	No. 3	10	5.5 mm	50	93406A311	00000


5/8"	0.557"							0.134"	A	No. 3	10	5.5 mm	50	93406A312	00000
3/4"	0.557"							0.134"	A	No. 3	10	5.5 mm	50	93406A313	00000
7/8"	0.557"							0.134"	A	No. 3	10	5.5 mm	25	93406A413	0000
1"	0.557"							0.134"	A	No. 3	10	5.5 mm	25	93406A315	0000
1 1/4"	0.557"							0.134"	A	No. 3	10	5.5 mm	25	93406A317	0000
1 1/2"	0.557"							0.134"	A	No. 3	10	5.5 mm	25	93406A318	0000
1 3/4"	0.557"							0.134"	A	No. 3	10	5.5 mm	25	93406A414	0000
2"	0.557"							0.134"	A	No. 3	10	5.5 mm	25	93406A320	00000
2 1/2"	0.557"							0.134"	A	No. 3	10	5.5 mm	10	93406A322	0000
3"	0.557"							0.134"	A	No. 3	10	5.5 mm	10	93406A324	0000


Highly Corrosion-Resistant 316 Stainless Steel







								No. 4 Screw Size

								1/4"	0.257"	0.069"	A	No. 1	24	44 Ga.	100	93406A107	0000


								3/8"	0.257"	0.069"	A	No. 1	24	44 Ga.	100	93406A109	0000
								1/2"	0.257"	0.069"	A	No. 1	24	44 Ga.	100	93406A111	0000




										No. 6 Screw Size

										1/4"	0.321"	0.086"	A	No. 2	18	32 Ga.	100	93406A145	00000


										3/8"	0.321"	0.086"	A	No. 2	18	32 Ga.	100	93406A147	00000
										1/2"	0.321"	0.086"	A	No. 2	18	32 Ga.	100	93406A149	00000
										5/8"	0.321"	0.086"	A	No. 2	18	32 Ga.	100	93406A152	00000
										3/4"	0.321"	0.086"	A	No. 2	18	32 Ga.	50	93406A154	0000
				1"						0.321"	0.086"	A	No. 2	18	32 Ga.	50	93406A156	0000




										No. 8 Screw Size

										3/8"	0.384"	0.102"	A	No. 2	15	29 Ga.	50	93406A193	0000


										1/2"	0.384"	0.102"	A	No. 2	15	29 Ga.	50	93406A195	0000
										5/8"	0.384"	0.102"	A	No. 2	15	29 Ga.	50	93406A198	0000
										3/4"	0.384"	0.102"	A	No. 2	15	29 Ga.	50	93406A202	00000
										1"	0.384"	0.102"	A	No. 2	15	29 Ga.	50	93406A206	00000
										1 1/4"	0.384"	0.102"	A	No. 2	15	29 Ga.	25	93406A208	0000
										1 1/2"	0.384"	0.102"	A	No. 2	15	29 Ga.	25	93406A209	0000




										No. 10 Screw Size

										3/8"	0.448"	0.118"	A	No. 2	12	21 Ga.	50	93406A241	00000


										1/2"	0.448"	0.118"	A	No. 2	12	21 Ga.	50	93406A243	00000
										5/8"	0.448"	0.118"	A	No. 2	12	21 Ga.	50	93406A246	00000
										3/4"	0.448"	0.118"	A	No. 2	12	21 Ga.	50	93406A248	00000
										1"	0.448"	0.118"	A	No. 2	12	21 Ga.	25	93406A255	0000
										1 1/4"	0.448"	0.118"	A	No. 2	12	21 Ga.	25	93406A256	0000
										1 1/2"	0.448"	0.118"	A	No. 2	12	21 Ga.	25	93406A257	00000
										2"	0.448"	0.118"	A	No. 2	12	21 Ga.	25	93406A259	00000




												No. 12 Screw Size

1/2"	0.511"											0.134"	A	No. 3	11	3/16"	25	93406A291	0000


3/4"	0.511"											0.134"	A	No. 3	11	3/16"	25	93406A295	0000
1"	0.511"	0.134"										A	No. 3	11	3/16"	25	93406A297	00000
1 1/2"	0.511"	0.134"	A									No. 3	11	3/16"	25	93406A299	00000




		No. 14 Screw Size

		3/4"	0.557"									0.146"	A	No. 3	10	5.5 mm	10	93406A314	0000


		1"	0.557"									0.146"	A	No. 3	10	5.5 mm	10	93406A316	0000
		1 1/2"	0.557"					0.146"				A	No. 3	10	5.5 mm	10	93406A319	0000

Steel Phillips Rounded Head Screws with Washer for Sheet Metal

Prevent sheet metal from bending and create a smooth, finished look. These screws have an attached, free-spinning washer that distributes pressure and covers a wider area than a flange. Their pointed tip starts a hole in sheets up to 0.025" thick, but for thicker material you’ll need to drill first. The Phillips drive handles enough torque to keep drivers from slipping.

Length is measured from the edge of 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.

Black Phosphate-Coated Steel—More corrosion resistant than black-oxide steel, these screws are suitable for environments with some moisture. They have a dark, matte coating for a finished look.

Chrome-Plated Steel—The brightest finish we offer has a mirror-like appearance that is often used in decorative applications. These screws won't rust in wet and outdoor environments.

	Lg.	Head Ht.	Tapping Screw Type	Drive Size	Approx. Threads per In.	Drill Bit Size	Washer Material	Washer OD	Pkg. Qty.		Pkg.
Black-Oxide Steel







				No. 8 Screw Size

				1/2"	0.123"	AB	No. 2	15	29 Ga.	Steel	0.5"	50	90399A194	000000


				Black Phosphate-Coated Steel







								No. 6 Screw Size

								5/8"	0.123"	AB	No. 2	18	32 Ga.	Steel	0.5"	50	90399A150	00000


								3/4"	0.123"	AB	No. 2	18	32 Ga.	Steel	0.5"	100	90399A151	00000
								1"	0.123"	AB	No. 2	18	32 Ga.	Steel	0.5"	100	90399A153	00000




										No. 8 Screw Size

										5/8"	0.123"	AB	No. 2	15	29 Ga.	Steel	0.5"	100	90399A196	00000


										3/4"	0.123"	AB	No. 2	15	29 Ga.	Steel	0.5"	100	90399A197	00000
										1"	0.123"	AB	No. 2	15	29 Ga.	Steel	0.5"	100	90399A199	00000
										1 1/4"	0.123"	AB	No. 2	15	29 Ga.	Steel	0.5"	100	90399A201	00000




												No. 10 Screw Size

												1/2"	0.123"	AB	No. 2	12	21 Ga.	Steel	0.5"	50	90399A242	00000


												3/4"	0.123"	AB	No. 2	12	21 Ga.	Steel	0.5"	50	90399A245	00000
												1"	0.123"	AB	No. 2	12	21 Ga.	Steel	0.5"	50	90399A247	00000
												1 1/4"	0.123"	AB	No. 2	12	21 Ga.	Steel	0.5"	50	90399A249	00000


												Chrome-Plated Steel







																No. 6 Screw Size

																5/8"	0.123"	AB	No. 2	18	32 Ga.	Steel	0.5"	50	90398A150	00000


3/4"	0.123"															AB	No. 2	18	32 Ga.	Steel	0.5"	50	90398A151	00000




		No. 8 Screw Size

		5/8"	0.123"													AB	No. 2	15	29 Ga.	Steel	0.5"	100	90398A196	00000


		3/4"	0.123"													AB	No. 2	15	29 Ga.	Steel	0.5"	100	90398A197	00000
		1"	0.123"													AB	No. 2	15	29 Ga.	Steel	0.5"	100	90398A199	00000
		1 1/4"	0.123"	AB												No. 2	15	29 Ga.	Steel	0.5"	100	90398A201	00000
		1 1/2"	0.123"	AB	No. 2											15	29 Ga.	Steel	0.5"	50	90398A203	00000




				No. 10 Screw Size

				5/8"	0.123"	AB	No. 2									12	21 Ga.	Steel	0.5"	100	90398A244	00000


				1"	0.123"	AB	No. 2									12	21 Ga.	Steel	0.5"	100	90398A247	00000
				1 1/4"	0.123"	AB	No. 2									12	21 Ga.	Steel	0.5"	100	90398A249	00000