Metric Panel Screws | McMaster-Carr

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122 Products

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	000000000	00000


				8	5	10	3	5.5	Slotted	1	000000000	0000
				10	5	10	3	6	Slotted	1	000000000	0000
				12	5	10	3	8.5	Slotted	1	000000000	0000
				16	5	10	3	9.5	Slotted	1	000000000	0000
				20	5	10	3	9.5	Slotted	1	000000000	0000
				22	5	10	3	9.5	Slotted	1	000000000	00000
				25	5	10	3	9.5	Slotted	1	000000000	00000




						M5 × 0.8 mm

						6	6.5	12	4	6	Slotted	1	000000000	0000


						8	6.5	12	4	5.5	Slotted	1	000000000	0000
						10	6.5	12	4	7.5	Slotted	1	000000000	0000
						16	6.5	12	4	9.5	Slotted	1	000000000	00000
						20	6.5	12	4	9.5	Slotted	1	000000000	00000
						22	6.5	12	4	9.5	Slotted	1	000000000	00000
						25	6.5	12	4	9.5	Slotted	1	000000000	00000
						30	6.5	12	4	9.5	Slotted	1	000000000	00000
						50	6.5	12	4	9.5	Slotted	1	000000000	00000




								M6 × 1 mm

								10	7.5	14	4.2	7.5	Slotted	1	000000000	0000


								12	7.5	14	4.2	8.5	Slotted	1	000000000	0000
								16	7.5	14	4.2	9.5	Slotted	1	000000000	0000
								20	7.5	14	4.2	9.5	Slotted	1	000000000	00000
								22	7.5	14	4.2	9.5	Slotted	1	000000000	00000
								25	7.5	14	4.2	9.5	Slotted	1	000000000	00000
								30	7.5	14	4.2	9.5	Slotted	1	000000000	00000
								40	7.5	14	4.2	9.5	Slotted	1	000000000	00000
								50	7.5	14	4.2	9.5	Slotted	1	000000000	00000




										M8 × 1.25 mm

										10	10	17.5	4.4	10	Slotted	1	000000000	0000


										12	10	17.5	4.4	9.5	Slotted	1	000000000	00000
										16	10	17.5	4.4	9.5	Slotted	1	000000000	00000
20										10	17.5	4.4	12.5	Slotted	1	000000000	00000
22	10									17.5	4.4	12.5	Slotted	1	000000000	00000
25	10									17.5	4.4	12.5	Slotted	1	000000000	00000
30	10									17.5	4.4	12.5	Slotted	1	000000000	00000
40	10									17.5	4.4	12.5	Slotted	1	000000000	00000
50	10	17.5								4.4	12.5	Slotted	1	000000000	00000


Black-Oxide 316 Stainless Steel







										M4 × 0.7 mm

										6	5	10	3	6	Slotted	1	000000000	0000


										16	5	10	3	9.5	Slotted	1	000000000	00000
				20						5	10	3	9.5	Slotted	1	000000000	00000
				25	5					10	3	9.5	Slotted	1	000000000	00000




										M6 × 1 mm

										10	7.5	14	4.2	7.5	Slotted	1	000000000	0000


										12	7.5	14	4.2	8.5	Slotted	1	000000000	00000
										16	7.5	14	4.2	9.5	Slotted	1	000000000	00000
										20	7.5	14	4.2	9.5	Slotted	1	000000000	00000
										22	7.5	14	4.2	9.5	Slotted	1	000000000	00000
										25	7.5	14	4.2	9.5	Slotted	1	000000000	00000
										40	7.5	14	4.2	9.5	Slotted	1	000000000	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	000000000	00000


				16 to 18	16	6	10.5	4	7.5	2.5	Hex	6	10.5	4	2.5	Hex	Barrel, Screw	000000000	0000
				20 to 22	20	6	10.5	4	9.5	2.5	Hex	6	10.5	4	2.5	Hex	Barrel, Screw	000000000	00000
				25 to 27	25	6	10.5	4	9.5	2.5	Hex	6	10.5	4	2.5	Hex	Barrel, Screw	000000000	00000
				30 to 32	30	6	10.5	4	9.5	2.5	Hex	6	10.5	4	2.5	Hex	Barrel, Screw	000000000	00000
				40 to 42	40	6	10.5	4	9.5	2.5	Hex	6	10.5	4	2.5	Hex	Barrel, Screw	000000000	00000




						M6 × 1 mm

						16 to 18	16	10	17.5	5	9.5	4	Hex	8	17.5	5	4	Hex	Barrel, Screw	000000000	00000


						20 to 22	20	10	17.5	5	9.5	4	Hex	8	17.5	5	4	Hex	Barrel, Screw	000000000	00000
						25 to 27	25	10	17.5	5	9.5	4	Hex	8	17.5	5	4	Hex	Barrel, Screw	000000000	00000
						30 to 32	30	10	17.5	5	9.5	4	Hex	8	17.5	5	4	Hex	Barrel, Screw	000000000	00000
						40 to 42	40	10	17.5	5	9.5	4	Hex	8	17.5	5	4	Hex	Barrel, Screw	000000000	00000




								M8 × 1.25 mm

								20 to 23	20	12	21	6	11.5	5	Hex	10	21	6	5	Hex	Barrel, Screw	000000000	00000


								25 to 28	25	12	21	6	11.5	5	Hex	10	21	6	5	Hex	Barrel, Screw	000000000	00000
								40 to 43	40	12	21	6	11.5	5	Hex	10	21	6	5	Hex	Barrel, Screw	000000000	00000
								50 to 53	50	12	21	6	11.5	5	Hex	10	21	6	5	Hex	Barrel, Screw	000000000	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	000000000	00000


												16 to 18	16	6	10.5	4	7.5	2.5	Hex	6	10.5	4	2.5	Hex	Barrel, Screw	000000000	00000
												20 to 22	20	6	10.5	4	9.5	2.5	Hex	6	10.5	4	2.5	Hex	Barrel, Screw	000000000	00000
												25 to 27	25	6	10.5	4	9.5	2.5	Hex	6	10.5	4	2.5	Hex	Barrel, Screw	000000000	00000
												30 to 32	30	6	10.5	4	9.5	2.5	Hex	6	10.5	4	2.5	Hex	Barrel, Screw	000000000	00000
												40 to 42	40	6	10.5	4	9.5	2.5	Hex	6	10.5	4	2.5	Hex	Barrel, Screw	000000000	00000




												M6 × 1 mm

												16 to 18	16	10	17.5	5	9.5	4	Hex	8	17.5	5	4	Hex	Barrel, Screw	000000000	00000


		30 to 32	30									10	17.5	5	9.5	4	Hex	8	17.5	5	4	Hex	Barrel, Screw	000000000	00000
		40 to 42	40									10	17.5	5	9.5	4	Hex	8	17.5	5	4	Hex	Barrel, Screw	000000000	00000

Thumb-Screw-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
			Head, mm			Slotted Drive
	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	000000000	000000	00000	25	000000000	000000	3	000000000	00000


				13	3.2	6.5	6.5	ASTM A581, ASTM A582	000000000	00000	0000	25	000000000	00000	3	000000000	0000
				14.5	3.2	6.5	6.5	ASTM A581, ASTM A582	000000000	00000	0000	25	000000000	00000	3	000000000	0000
				17.5	3.2	6.5	6.5	ASTM A581, ASTM A582	000000000	00000	00000	25	000000000	00000	3	000000000	0000
				22	3.2	6.5	6.5	ASTM A581, ASTM A582	000000000	00000	00000	25	000000000	00000	3	000000000	0000




						M3.5 × 0.6 mm

						11	5.5	8	8	ASTM A581, ASTM A582	000000000	00000	00000	25	000000000	00000	3	000000000	0000


						13	5.5	8	8	ASTM A581, ASTM A582	000000000	00000	00000	25	000000000	00000	3	000000000	0000
						14.5	5.5	8	8	ASTM A581, ASTM A582	000000000	00000	00000	25	000000000	00000	3	000000000	0000
						17.5	5.5	8	8	ASTM A581, ASTM A582	000000000	00000	00000	25	000000000	00000	3	000000000	0000
						22	5.5	8	8	ASTM A581, ASTM A582	000000000	00000	00000	25	000000000	00000	3	000000000	0000




								M4 × 0.7 mm

								11	5.5	8	8	ASTM A581, ASTM A582	000000000	00000	00000	25	000000000	00000	3	000000000	0000


								13	5.5	8	8	ASTM A581, ASTM A582	000000000	00000	00000	25	000000000	00000	3	000000000	0000
								14.5	5.5	8	8	ASTM A581, ASTM A582	000000000	00000	00000	25	000000000	00000	3	000000000	0000
								17.5	5.5	8	8	ASTM A581, ASTM A582	000000000	00000	00000	25	000000000	00000	3	000000000	0000
								22	5.5	8	8	ASTM A581, ASTM A582	000000000	00000	00000	25	000000000	00000	3	000000000	0000

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.

			Head, mm				Aluminum Head			Black Powder-Coated Aluminum Head
	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	000000000	00000	00000	000000000	00000	00000


				1 to 1.6	6.4	11.5	10.6	8.8	400 Series Stainless Steel	000000000	0000	0000	———	0	0
				1 to 1.6	6.4	11.5	10.6	10.4	400 Series Stainless Steel	000000000	0000	0000	000000000	0000	0000




						M4 × 0.7 mm

						0.5 to 1	6.4	13	11.3	5.6	400 Series Stainless Steel	000000000	0000	0000	000000000	0000	0000


						0.5 to 1	6.4	13	11.3	7.2	400 Series Stainless Steel	000000000	0000	0000	000000000	0000	0000
						0.5 to 1	6.4	13	11.3	10.4	400 Series Stainless Steel	———	0	0	000000000	0000	0000
						1 to 1.6	6.4	13	11.3	7.2	400 Series Stainless Steel	000000000	0000	0000	000000000	0000	0000
						1 to 1.6	6.4	13	11.3	8.8	400 Series Stainless Steel	000000000	0000	0000	000000000	0000	0000
						1 to 1.6	6.4	13	11.3	10.4	400 Series Stainless Steel	000000000	0000	0000	000000000	0000	0000
						1.6 to 2.5	6.4	13	11.3	7.2	400 Series Stainless Steel	000000000	0000	0000	000000000	0000	0000
						1.6 to 2.5	6.4	13	11.3	8.8	400 Series Stainless Steel	000000000	0000	0000	000000000	0000	0000
						1.6 to 2.5	6.4	13	11.3	10.4	400 Series Stainless Steel	000000000	0000	0000	000000000	0000	0000




								M5 × 0.8 mm

								0.5 to 1	6.4	13	11.3	7.2	400 Series Stainless Steel	000000000	0000	0000	———	0	0


								1 to 1.6	6.4	13	11.3	7.2	400 Series Stainless Steel	———	0	0	000000000	0000	0000
								1 to 1.6	6.4	13	11.3	8.8	400 Series Stainless Steel	000000000	0000	0000	000000000	0000	0000
								1 to 1.6	6.4	13	11.3	10.4	400 Series Stainless Steel	000000000	0000	0000	000000000	0000	0000
								1.6 to 2.5	6.4	13	11.3	7.2	400 Series Stainless Steel	000000000	0000	0000	———	0	0
								1.6 to 2.5	6.4	13	11.3	8.8	400 Series Stainless Steel	000000000	0000	0000	000000000	0000	0000
								1.6 to 2.5	6.4	13	11.3	10.4	400 Series Stainless Steel	000000000	0000	0000	000000000	0000	0000