Metric Panel Bolts | McMaster-Carr

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176 Products

Socket Head Captive Panel Screws

Install through a hole and thread on a retainer (sold separately) to keep these screws secure—no special tools are required. Use an optional spring (sold separately) to provide even compression against panels. Screws, retainers, and springs are made from chemical-resistant 18-8 stainless steel and may be mildly magnetic. Length is measured from under the head.

	Screws										Retainers			Springs
							Hex Drive
			Head, mm					Each
	Lg., mm	Thread Lg., mm	Dia.	Ht.	Shank Dia., mm	Drive Size, mm		1-24	25-99	100-Up	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				M2 × 0.4 mm

				8	3	3.8	2	1.2	1.5	95966A722	00000	00000	00000	—	———	0	—	———	0


				10	3	3.8	2	1.2	1.5	95966A723	0000	0000	0000	—	———	0	—	———	0




						M2.5 × 0.45 mm

						6	3.5	4.5	2.5	1.4	2	95966A724	0000	0000	0000	—	———	0	—	———	0


						8	3.5	4.5	2.5	1.4	2	95966A725	0000	0000	0000	—	———	0	—	———	0




								M3 × 0.5 mm

								8	4	5.5	3	2	2.5	95966A682	0000	0000	0000	25	91065A810	000000	3	94125K472	00000


								10	4	5.5	3	2	2.5	95966A683	0000	0000	0000	25	91065A810	00000	5	9435K24	0000
								12	4	5.5	3	2	2.5	95966A684	0000	0000	0000	25	91065A810	00000	5	9435K24	0000
								16	4	5.5	3	2	2.5	95966A685	0000	0000	0000	25	91065A810	00000	5	9435K24	0000
								18	4	5.5	3	2	2.5	95966A686	0000	0000	0000	25	91065A810	00000	5	9435K24	0000
								20	4	5.5	3	2	2.5	95966A687	0000	0000	0000	25	91065A810	00000	5	9435K24	0000
								25	4	5.5	3	2	2.5	95966A688	0000	0000	0000	25	91065A810	00000	5	9435K24	0000




										M4 × 0.7 mm

										8	4	7	4	2.8	3	95966A689	0000	0000	0000	25	91065A850	00000	5	9435K36	0000


										10	4	7	4	2.8	3	95966A690	0000	0000	0000	25	91065A850	00000	5	9435K36	0000
										12	4	7	4	2.8	3	95966A691	0000	0000	0000	25	91065A850	00000	5	9435K36	0000
										16	4	7	4	2.8	3	95966A692	0000	0000	0000	25	91065A850	00000	5	9435K36	0000
										20	4	7	4	2.8	3	95966A693	0000	0000	0000	25	91065A850	00000	5	9435K36	0000
										25	4	7	4	2.8	3	95966A694	0000	0000	0000	25	91065A850	00000	5	9435K36	0000




												M5 × 0.8 mm

												8	4	8.5	5	3.7	4	95966A695	0000	0000	0000	25	91065A590	00000	5	9435K5	0000


												10	4	8.5	5	3.7	4	95966A696	0000	0000	0000	25	91065A590	00000	5	9435K5	0000
												12	4	8.5	5	3.7	4	95966A697	0000	0000	0000	25	91065A590	00000	5	9435K5	0000
												16	4	8.5	5	3.7	4	95966A698	0000	0000	0000	25	91065A590	00000	5	9435K5	0000
20												4	8.5	5	3.7	4	95966A699	0000	0000	0000	25	91065A590	00000	5	9435K5	0000
25	4											8.5	5	3.7	4	95966A700	0000	0000	0000	25	91065A590	00000	5	9435K5	0000
30	4											8.5	5	3.7	4	95966A701	0000	0000	0000	25	91065A590	00000	5	9435K5	0000




		M6 × 1 mm

		10	6									10	6	4.2	5	95966A702	0000	0000	0000	25	91065A610	00000	5	9435K5	0000


		12	6									10	6	4.2	5	95966A703	0000	0000	0000	25	91065A610	00000	5	9435K5	0000
		16	6									10	6	4.2	5	95966A704	0000	0000	0000	25	91065A610	00000	5	9435K5	0000
		20	6									10	6	4.2	5	95966A705	00000	0000	0000	25	91065A610	00000	5	9435K5	0000
		25	6									10	6	4.2	5	95966A706	00000	0000	0000	25	91065A610	00000	5	9435K5	0000
		30	6	10								6	4.2	5	95966A707	00000	00000	0000	25	91065A610	00000	5	9435K5	0000




				M8 × 1.25 mm

				16	8							13	8	6	6	95966A708	00000	0000	0000	—	———	0	—	———	0


				20	8							13	8	6	6	95966A709	00000	00000	0000	—	———	0	—	———	0
				25	8	13						8	6	6	95966A710	00000	00000	00000	—	———	0	—	———	0
				30	8	13	8					6	6	95966A712	00000	00000	00000	—	———	0	—	———	0
				40	8	13	8					6	6	95966A713	00000	00000	00000	—	———	0	—	———	0




						M10 × 1.5 mm

						25	8					16	10	7.8	8	95966A726	00000	00000	00000	—	———	0	—	———	0


						30	8					16	10	7.8	8	95966A727	00000	00000	00000	—	———	0	—	———	0

Highly Corrosion-Resistant 316 Stainless Steel Binding Barrels

Slotted

Use these barrels with a screw you already have or pair with a different type of screw to create a custom fastener. Made from 316 stainless steel, they have excellent chemical resistance and can be used in saltwater environments. Barrel length is measured from under the head.

	Barrel
	Lg., mm	Dia., mm	Head Dia., mm	Head Ht., mm	Thread Dp., mm	Drive Style	Pkg. Qty.		Pkg.
316 Stainless Steel







				M4 × 0.7 mm

				6	5	10	3	6	Slotted	1	92463A864	00000


				8	5	10	3	5.5	Slotted	1	92463A865	0000
				10	5	10	3	6	Slotted	1	92463A866	0000
				12	5	10	3	8.5	Slotted	1	92463A867	0000
				16	5	10	3	9.5	Slotted	1	92463A868	0000
				20	5	10	3	9.5	Slotted	1	92463A869	0000
				22	5	10	3	9.5	Slotted	1	92463A871	00000
				25	5	10	3	9.5	Slotted	1	92463A872	00000




						M5 × 0.8 mm

						6	6.5	12	4	6	Slotted	1	92463A873	0000


						8	6.5	12	4	5.5	Slotted	1	92463A874	0000
						10	6.5	12	4	7.5	Slotted	1	92463A875	0000
						16	6.5	12	4	9.5	Slotted	1	92463A877	00000
						20	6.5	12	4	9.5	Slotted	1	92463A878	00000
						22	6.5	12	4	9.5	Slotted	1	92463A879	00000
						25	6.5	12	4	9.5	Slotted	1	92463A881	00000
						30	6.5	12	4	9.5	Slotted	1	92463A882	00000
						50	6.5	12	4	9.5	Slotted	1	92463A884	00000




								M6 × 1 mm

								10	7.5	14	4.2	7.5	Slotted	1	92463A885	0000


								12	7.5	14	4.2	8.5	Slotted	1	92463A886	0000
								16	7.5	14	4.2	9.5	Slotted	1	92463A887	0000
								20	7.5	14	4.2	9.5	Slotted	1	92463A901	00000
								22	7.5	14	4.2	9.5	Slotted	1	92463A889	00000
								25	7.5	14	4.2	9.5	Slotted	1	92463A891	00000
								30	7.5	14	4.2	9.5	Slotted	1	92463A892	00000
								40	7.5	14	4.2	9.5	Slotted	1	92463A893	00000
								50	7.5	14	4.2	9.5	Slotted	1	92463A894	00000




										M8 × 1.25 mm

										10	10	17.5	4.4	10	Slotted	1	92463A895	0000


										12	10	17.5	4.4	9.5	Slotted	1	92463A896	00000
										16	10	17.5	4.4	9.5	Slotted	1	92463A897	00000
20										10	17.5	4.4	12.5	Slotted	1	92463A898	00000
22	10									17.5	4.4	12.5	Slotted	1	92463A899	00000
25	10									17.5	4.4	12.5	Slotted	1	92463A911	00000
30	10									17.5	4.4	12.5	Slotted	1	92463A912	00000
40	10									17.5	4.4	12.5	Slotted	1	92463A913	00000
50	10	17.5								4.4	12.5	Slotted	1	92463A914	00000


Black-Oxide 316 Stainless Steel







										M4 × 0.7 mm

										6	5	10	3	6	Slotted	1	92463A916	0000


										16	5	10	3	9.5	Slotted	1	92463A921	00000
				20						5	10	3	9.5	Slotted	1	92463A922	00000
				25	5					10	3	9.5	Slotted	1	92463A924	00000




										M6 × 1 mm

										10	7.5	14	4.2	7.5	Slotted	1	92463A937	0000


										12	7.5	14	4.2	8.5	Slotted	1	92463A938	00000
										16	7.5	14	4.2	9.5	Slotted	1	92463A939	00000
										20	7.5	14	4.2	9.5	Slotted	1	92463A941	00000
										22	7.5	14	4.2	9.5	Slotted	1	92463A942	00000
										25	7.5	14	4.2	9.5	Slotted	1	92463A943	00000
										40	7.5	14	4.2	9.5	Slotted	1	92463A945	00000

Steel Hex Head Screws for Blind Holes


Installed View

Install these screws when you can only access one side of material. They're a higher-strength alternative to blind rivets. To install, hold the washer in place with a wrench, then use a hex socket to turn the screw. As the screw is tightened, the attached nut expands the sleeve to create a strong clamping force on the back of the material.

Head height does not include the washer. Length is measured from under the washer.

Medium-Strength Fastener—Your go-to screws for fastening most machinery and equipment. They have tensile strengths from 90,000 to 120,000 psi.

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

				Head, mm		Washer		Sleeve
	For Material Thk.	For Hole Size	Lg.	Wd.	Ht.	OD	Thk.	OD	Lg.	Threading	Thread Spacing	Fastener Strength Grade/Class	Tensile Strength, psi		Each
Medium-Strength Zinc-Plated Steel







				M8 × 1.25 mm

				1/8" to 7/8"	9/16"	1 3/4"	13	5.3	0.875"	0.188"	35/64"	1 3/16"	Fully Threaded	Coarse	Class 8.8	110,000	90187A111	00000


				7/8" to 1 5/8"	9/16"	2 9/16"	13	5.3	0.875"	0.188"	35/64"	1 15/16"	Fully Threaded	Coarse	Class 8.8	110,000	90187A112	00000
				1 5/8" to 2 3/8"	9/16"	3 3/8"	13	5.3	0.875"	0.188"	35/64"	2 11/16"	Fully Threaded	Coarse	Class 8.8	110,000	90187A113	00000




						M10 × 1.5 mm

						1/8" to 7/8"	3/4"	2"	16	6.4	1.125"	0.250"	45/64"	1 3/16"	Fully Threaded	Coarse	Class 8.8	110,000	90187A114	00000


						7/8" to 1 5/8"	3/4"	2 1/2"	16	6.4	1.125"	0.250"	45/64"	1 7/8"	Fully Threaded	Coarse	Class 8.8	110,000	90187A115	00000
						1 5/8" to 2 3/8"	3/4"	3 5/16"	16	6.4	1.125"	0.250"	45/64"	2 5/8"	Fully Threaded	Coarse	Class 8.8	110,000	90187A116	00000




								M12 × 1.75 mm

								1/8" to 1"	13/16"	2 1/8"	18	7.5	1.250"	0.250"	25/32"	1 3/8"	Fully Threaded	Coarse	Class 8.8	110,000	90187A117	00000


								1" to 1 13/16"	13/16"	2 7/8"	18	7.5	1.250"	0.250"	25/32"	2 1/4"	Fully Threaded	Coarse	Class 8.8	110,000	90187A118	00000
								1 13/16" to 2 3/4"	13/16"	3 3/4"	18	7.5	1.250"	0.250"	25/32"	3 1/8"	Fully Threaded	Coarse	Class 8.8	110,000	90187A119	00000




										M16 × 2 mm

										1/2" to 1 1/8"	1 1/16"	2 5/8"	24	10	1.500"	0.313"	1 1/64"	1 5/8"	Fully Threaded	Coarse	Class 8.8	110,000	90187A121	00000


										1 1/8" to 2"	1 1/16"	3 5/8"	24	10	1.500"	0.313"	1 1/64"	2 1/2"	Fully Threaded	Coarse	Class 8.8	110,000	90187A122	00000
										2" to 2 13/16"	1 1/16"	4 7/16"	24	10	1.500"	0.313"	1 1/64"	3 5/16"	Fully Threaded	Coarse	Class 8.8	110,000	90187A123	00000

Hex Drive Binding Barrels and Screws

Made from 18-8 stainless steel, these binding barrels and screws are chemical resistant and may be mildly magnetic. Barrel length and screw length are measured from under the head.

Black-Oxide 18-8 Stainless Steel—Black-oxide 18-8 stainless steel binding barrels and screws have a matte-black finish that matches dark surfaces and reduces glare.

		Barrel							Screw
	For Material Thk., mm	Lg., mm	Dia., mm	Head Dia., mm	Head Ht., mm	Thread Dp., mm	Drive Size, mm	Drive Style	Lg., mm	Head Dia., mm	Head Ht., mm	Drive Size, mm	Drive Style	Includes		Each
18-8 Stainless Steel







				M4 × 0.7 mm

				12 to 14	12	6	10.5	4	7.5	2.5	Hex	6	10.5	4	2.5	Hex	Barrel, Screw	97851A403	00000


				16 to 18	16	6	10.5	4	7.5	2.5	Hex	6	10.5	4	2.5	Hex	Barrel, Screw	97851A404	0000
				20 to 22	20	6	10.5	4	9.5	2.5	Hex	6	10.5	4	2.5	Hex	Barrel, Screw	97851A405	00000
				25 to 27	25	6	10.5	4	9.5	2.5	Hex	6	10.5	4	2.5	Hex	Barrel, Screw	97851A406	00000
				30 to 32	30	6	10.5	4	9.5	2.5	Hex	6	10.5	4	2.5	Hex	Barrel, Screw	97851A407	00000
				40 to 42	40	6	10.5	4	9.5	2.5	Hex	6	10.5	4	2.5	Hex	Barrel, Screw	97851A408	00000




						M6 × 1 mm

						16 to 18	16	10	17.5	5	9.5	4	Hex	8	17.5	5	4	Hex	Barrel, Screw	97851A409	00000


						20 to 22	20	10	17.5	5	9.5	4	Hex	8	17.5	5	4	Hex	Barrel, Screw	97851A410	00000
						25 to 27	25	10	17.5	5	9.5	4	Hex	8	17.5	5	4	Hex	Barrel, Screw	97851A411	00000
						30 to 32	30	10	17.5	5	9.5	4	Hex	8	17.5	5	4	Hex	Barrel, Screw	97851A412	00000
						40 to 42	40	10	17.5	5	9.5	4	Hex	8	17.5	5	4	Hex	Barrel, Screw	97851A413	00000




								M8 × 1.25 mm

								20 to 23	20	12	21	6	11.5	5	Hex	10	21	6	5	Hex	Barrel, Screw	97851A414	00000


								25 to 28	25	12	21	6	11.5	5	Hex	10	21	6	5	Hex	Barrel, Screw	97851A415	00000
								40 to 43	40	12	21	6	11.5	5	Hex	10	21	6	5	Hex	Barrel, Screw	97851A416	00000
								50 to 53	50	12	21	6	11.5	5	Hex	10	21	6	5	Hex	Barrel, Screw	97851A417	00000


								Black-Oxide 18-8 Stainless Steel







												M4 × 0.7 mm

												12 to 14	12	6	10.5	4	7.5	2.5	Hex	6	10.5	4	2.5	Hex	Barrel, Screw	97851A418	00000


												16 to 18	16	6	10.5	4	7.5	2.5	Hex	6	10.5	4	2.5	Hex	Barrel, Screw	97851A419	00000
												20 to 22	20	6	10.5	4	9.5	2.5	Hex	6	10.5	4	2.5	Hex	Barrel, Screw	97851A420	00000
												25 to 27	25	6	10.5	4	9.5	2.5	Hex	6	10.5	4	2.5	Hex	Barrel, Screw	97851A421	00000
												30 to 32	30	6	10.5	4	9.5	2.5	Hex	6	10.5	4	2.5	Hex	Barrel, Screw	97851A422	00000
												40 to 42	40	6	10.5	4	9.5	2.5	Hex	6	10.5	4	2.5	Hex	Barrel, Screw	97851A423	00000




												M6 × 1 mm

												16 to 18	16	10	17.5	5	9.5	4	Hex	8	17.5	5	4	Hex	Barrel, Screw	97851A424	00000


		30 to 32	30									10	17.5	5	9.5	4	Hex	8	17.5	5	4	Hex	Barrel, Screw	97851A427	00000
		40 to 42	40									10	17.5	5	9.5	4	Hex	8	17.5	5	4	Hex	Barrel, Screw	97851A428	00000

Snap-In Captive Panel Screws


	Aluminum Head	Black Powder-Coated Aluminum Head

Snap these screws into panels up to 0.125" thick—no tools are required for installation. Screws have a built-in retainer and become a part of the panel when installed, so they won't fall out and get lost. They're often used with surface mount nuts.

Powder-Coated Aluminum Head—Screws with black powder-coated heads blend in with dark surfaces and aren’t reflective. They’re often used in dashboards, cockpits, or military equipment where glare is a concern.

							Aluminum Head			Black Powder-Coated Aluminum Head
			Head, mm					Each			Each
	For Outer Panel Thk., mm	For Outer Panel Hole Dia., mm	Dia.	Ht.	Lg., mm	Screw Material		1-99	100-Up		1-99	100-Up
Aluminum Body







				M3.5 × 0.6 mm

				0.5 to 1	6.4	11.5	10.6	5.6	400 Series Stainless Steel	92060A354	00000	00000	90548A143	00000	00000


				1 to 1.6	6.4	11.5	10.6	8.8	400 Series Stainless Steel	92060A359	0000	0000	———	0	0
				1 to 1.6	6.4	11.5	10.6	10.4	400 Series Stainless Steel	92060A361	0000	0000	90548A149	0000	0000




						M4 × 0.7 mm

						0.5 to 1	6.4	13	11.3	5.6	400 Series Stainless Steel	92060A362	0000	0000	90548A151	0000	0000


						0.5 to 1	6.4	13	11.3	7.2	400 Series Stainless Steel	92060A363	0000	0000	90548A152	0000	0000
						0.5 to 1	6.4	13	11.3	10.4	400 Series Stainless Steel	———	0	0	90548A154	0000	0000
						1 to 1.6	6.4	13	11.3	7.2	400 Series Stainless Steel	92060A366	0000	0000	90548A155	0000	0000
						1 to 1.6	6.4	13	11.3	8.8	400 Series Stainless Steel	92060A367	0000	0000	90548A156	0000	0000
						1 to 1.6	6.4	13	11.3	10.4	400 Series Stainless Steel	92060A368	0000	0000	90548A157	0000	0000
						1.6 to 2.5	6.4	13	11.3	7.2	400 Series Stainless Steel	92060A369	0000	0000	90548A158	0000	0000
						1.6 to 2.5	6.4	13	11.3	8.8	400 Series Stainless Steel	92060A371	0000	0000	90548A159	0000	0000
						1.6 to 2.5	6.4	13	11.3	10.4	400 Series Stainless Steel	92060A372	0000	0000	90548A161	0000	0000




								M5 × 0.8 mm

								0.5 to 1	6.4	13	11.3	7.2	400 Series Stainless Steel	92060A374	0000	0000	———	0	0


								1 to 1.6	6.4	13	11.3	7.2	400 Series Stainless Steel	———	0	0	90548A166	0000	0000
								1 to 1.6	6.4	13	11.3	8.8	400 Series Stainless Steel	92060A378	0000	0000	90548A167	0000	0000
								1 to 1.6	6.4	13	11.3	10.4	400 Series Stainless Steel	92060A379	0000	0000	90548A168	0000	0000
								1.6 to 2.5	6.4	13	11.3	7.2	400 Series Stainless Steel	92060A381	0000	0000	———	0	0
								1.6 to 2.5	6.4	13	11.3	8.8	400 Series Stainless Steel	92060A382	0000	0000	90548A171	0000	0000
								1.6 to 2.5	6.4	13	11.3	10.4	400 Series Stainless Steel	92060A383	0000	0000	90548A172	0000	0000

Thumb-Screw-Head Captive Panel Screws

	Screws								Retainers			Springs
						Slotted Drive
			Head, mm				Each
	Lg., mm	Thread Lg., mm	Dia.	Ht.	Specs. Met		1-4	5-Up	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				M3 × 0.5 mm

				11	3.2	6.5	6.5	ASTM A581, ASTM A582	95536A113	000000	00000	25	91065A810	000000	3	94125K472	00000


				13	3.2	6.5	6.5	ASTM A581, ASTM A582	95536A127	00000	0000	25	91065A810	00000	3	94125K472	0000
				14.5	3.2	6.5	6.5	ASTM A581, ASTM A582	95536A141	00000	0000	25	91065A810	00000	3	94125K472	0000
				17.5	3.2	6.5	6.5	ASTM A581, ASTM A582	95536A155	00000	00000	25	91065A810	00000	3	94125K472	0000
				22	3.2	6.5	6.5	ASTM A581, ASTM A582	95536A169	00000	00000	25	91065A810	00000	3	94125K472	0000




						M3.5 × 0.6 mm

						11	5.5	8	8	ASTM A581, ASTM A582	95536A207	00000	00000	25	91065A830	00000	3	94125K472	0000


						13	5.5	8	8	ASTM A581, ASTM A582	95536A215	00000	00000	25	91065A830	00000	3	94125K472	0000
						14.5	5.5	8	8	ASTM A581, ASTM A582	95536A223	00000	00000	25	91065A830	00000	3	94125K472	0000
						17.5	5.5	8	8	ASTM A581, ASTM A582	95536A231	00000	00000	25	91065A830	00000	3	94125K472	0000
						22	5.5	8	8	ASTM A581, ASTM A582	95536A239	00000	00000	25	91065A830	00000	3	94125K472	0000




								M4 × 0.7 mm

								11	5.5	8	8	ASTM A581, ASTM A582	95536A305	00000	00000	25	91065A850	00000	3	94125K472	0000


								13	5.5	8	8	ASTM A581, ASTM A582	95536A318	00000	00000	25	91065A850	00000	3	94125K472	0000
								14.5	5.5	8	8	ASTM A581, ASTM A582	95536A331	00000	00000	25	91065A850	00000	3	94125K472	0000
								17.5	5.5	8	8	ASTM A581, ASTM A582	95536A344	00000	00000	25	91065A850	00000	3	94125K472	0000
								22	5.5	8	8	ASTM A581, ASTM A582	95536A357	00000	00000	25	91065A850	00000	3	94125K472	0000