ISO 21269 Screws | McMaster-Carr

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59 Products

Steel Socket Head Screws


Fully Threaded	Partially Threaded

Made of alloy steel, these screws are the standard for high-strength fastening. Use them in high-load applications such as dies, presses, and heavy equipment. The deep, six-point socket keeps the hex key from slipping out and damaging the drive.

Length is measured from under the head.

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

		Head, mm
	Lg., mm	Dia.	Ht.	Threading	Thread Spacing	Tensile Strength, psi	Fastener Strength Grade/Class	Pkg. Qty.		Pkg.
Black-Oxide Alloy Steel







				M6 × 0.75 mm

				12	10	6	Fully Threaded	Fine	170,000	Class 12.9	1	96144A111	00000


				16	10	6	Fully Threaded	Fine	170,000	Class 12.9	1	96144A116	0000
				20	10	6	Fully Threaded	Fine	170,000	Class 12.9	1	96144A120	0000
				25	10	6	Fully Threaded	Fine	170,000	Class 12.9	1	96144A125	0000
				30	10	6	Partially Threaded	Fine	170,000	Class 12.9	1	96144A130	0000
				35	10	6	Partially Threaded	Fine	170,000	Class 12.9	1	96144A135	0000
				40	10	6	Partially Threaded	Fine	170,000	Class 12.9	1	96144A140	0000
				50	10	6	Partially Threaded	Fine	170,000	Class 12.9	1	96144A150	0000
				60	10	6	Partially Threaded	Fine	170,000	Class 12.9	1	96144A160	0000




						M8 × 1 mm

						12	13	8	Fully Threaded	Fine	170,000	Class 12.9	1	96144A212	0000


						16	13	8	Fully Threaded	Fine	170,000	Class 12.9	10	96144A216	0000




								M10 × 1 mm

								20	16	10	Fully Threaded	Extra Fine	170,000	Class 12.9	10	96144A262	0000


								30	16	10	Fully Threaded	Extra Fine	170,000	Class 12.9	10	96144A263	00000
								40	16	10	Partially Threaded	Extra Fine	170,000	Class 12.9	10	96144A264	00000
								50	16	10	Partially Threaded	Extra Fine	170,000	Class 12.9	10	96144A266	00000
								60	16	10	Partially Threaded	Extra Fine	170,000	Class 12.9	5	96144A267	00000
								80	16	10	Partially Threaded	Extra Fine	170,000	Class 12.9	1	96144A268	0000




										M10 × 1.25 mm

										12	16	10	Fully Threaded	Fine	170,000	Class 12.9	1	96144A251	0000


										16	16	10	Fully Threaded	Fine	170,000	Class 12.9	10	96144A255	0000
										35	16	10	Partially Threaded	Fine	170,000	Class 12.9	10	96144A257	0000
										70	16	10	Partially Threaded	Fine	170,000	Class 12.9	10	96144A258	00000
										100	16	10	Partially Threaded	Fine	170,000	Class 12.9	5	96144A259	00000




												M12 × 1.25 mm

												20	18	12	Fully Threaded	Extra Fine	170,000	Class 12.9	10	96144A292	00000


25	18											12	Fully Threaded	Extra Fine	170,000	Class 12.9	10	96144A294	00000
35	18											12	Fully Threaded	Extra Fine	170,000	Class 12.9	10	96144A295	00000
50	18											12	Fully Threaded	Extra Fine	170,000	Class 12.9	10	96144A303	00000
60	18	12										Partially Threaded	Extra Fine	170,000	Class 12.9	10	96144A307	00000
70	18	12	Partially Threaded									Extra Fine	170,000	Class 12.9	10	96144A313	00000
80	18	12	Partially Threaded									Extra Fine	170,000	Class 12.9	5	96144A317	00000




		M12 × 1.5 mm

		20	18									12	Fully Threaded	Fine	170,000	Class 12.9	1	96144A296	0000


		25	18									12	Fully Threaded	Fine	170,000	Class 12.9	10	96144A298	00000
		30	18									12	Fully Threaded	Fine	170,000	Class 12.9	10	96144A299	00000
		40	18									12	Partially Threaded	Fine	170,000	Class 12.9	10	96144A301	00000
		50	18									12	Partially Threaded	Fine	170,000	Class 12.9	10	96144A302	00000
		60	18									12	Partially Threaded	Fine	170,000	Class 12.9	1	96144A304	0000
		80	18									12	Partially Threaded	Fine	170,000	Class 12.9	1	96144A305	0000




				M16 × 1.5 mm

				30	24							16	Fully Threaded	Fine	170,000	Class 12.9	5	96144A331	00000


				35	24							16	Fully Threaded	Fine	170,000	Class 12.9	5	96144A332	00000
				100	24							16	Partially Threaded	Fine	170,000	Class 12.9	1	96144A333	0000




						M20 × 1.5 mm

						50	30					20	Fully Threaded	Extra Fine	170,000	Class 12.9	1	96144A343	0000


						60	30					20	Partially Threaded	Extra Fine	170,000	Class 12.9	1	96144A344	0000
						80	30					20	Partially Threaded	Extra Fine	170,000	Class 12.9	1	96144A345	0000
						100	30					20	Partially Threaded	Extra Fine	170,000	Class 12.9	1	96144A346	0000

Stainless Steel Socket Head Screws

Fully Threaded

These screws won't rust or corrode when exposed to moisture and chemicals. Their deep, six-point socket keeps hex keys from slipping out and damaging the drive.

Length is measured from under the head.

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

		Head, mm
	Lg., mm	Dia.	Ht.	Threading	Thread Spacing	Tensile Strength, psi	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				M3 × 0.35 mm

				6	5.5	3	Fully Threaded	Fine	70,000	100	90751A110	00000


				8	5.5	3	Fully Threaded	Fine	70,000	100	90751A111	0000
				10	5.5	3	Fully Threaded	Fine	70,000	100	90751A112	00000
				12	5.5	3	Fully Threaded	Fine	70,000	100	90751A113	00000
				16	5.5	3	Fully Threaded	Fine	70,000	100	90751A114	00000




						M4 × 0.5 mm

						8	7	4	Fully Threaded	Fine	70,000	100	90751A115	00000


						10	7	4	Fully Threaded	Fine	70,000	100	90751A116	00000
						12	7	4	Fully Threaded	Fine	70,000	100	90751A117	00000
						14	7	4	Fully Threaded	Fine	70,000	100	90751A118	00000
						16	7	4	Fully Threaded	Fine	70,000	50	90751A119	0000
						20	7	4	Fully Threaded	Fine	70,000	50	90751A120	00000




								M5 × 0.5 mm

								10	8.5	5	Fully Threaded	Fine	70,000	50	90751A121	00000


								12	8.5	5	Fully Threaded	Fine	70,000	50	90751A122	00000
								16	8.5	5	Fully Threaded	Fine	70,000	50	90751A123	00000
								20	8.5	5	Fully Threaded	Fine	70,000	50	90751A124	00000
								25	8.5	5	Fully Threaded	Fine	70,000	25	90751A125	0000