MS 51957 Machine Screws | McMaster-Carr

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Military Specification

System of Measurement

Thread Size

Length

Drive Style

Material

Rounded Head Style

Specifications Met

Federal Specification

NASM51576

Finish

Black Oxide

Fastener Head Type

Rounded

DFARS Specialty Metals

Head Diameter

REACH

RoHS

Threading

Certification

Thread Type

Head Height

Thread Fit

Unified Standard Class 2A

Performance

Corrosion Resistant

Tensile Strength

30,000 psi to 99,999 psi

Thread Spacing

Drive Size

Hardness

Export Control Classification Number (ECCN)

Tip Type

104 Products

Stainless Steel Pan Head Phillips Screws

These stainless steel pan head Phillips screws won't rust or corrode when exposed to moisture and chemicals. They have a moderate height and width profile, offering a middle ground between narrower button heads and wider truss heads. The Phillips drive easily aligns with drivers and withstands more torque than slotted drives, but drivers slip when you apply too much force.

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 can.

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

Military Specification—These screws are manufactured and tested to meet strict U.S. military standards for material and construction.

		Head
	Lg.	Dia.	Ht.	Threading	Tensile Strength, psi	Specs. Met	Mil. Spec.	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				2-56

				1/8"	0.167"	0.062"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-1	100	000000000	00000


				3/16"	0.167"	0.062"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-2	100	000000000	0000
				1/4"	0.167"	0.062"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-3	100	000000000	0000
				5/16"	0.167"	0.062"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-4	100	000000000	0000
				3/8"	0.167"	0.062"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-5	100	000000000	0000
				7/16"	0.167"	0.062"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-6	100	000000000	0000
				1/2"	0.167"	0.062"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-7	100	000000000	00000
				9/16"	0.167"	0.062"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-141	100	000000000	00000
				5/8"	0.167"	0.062"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-8	100	000000000	00000
				3/4"	0.167"	0.062"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-9	100	000000000	00000
				7/8"	0.167"	0.062"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-10	25	000000000	00000


				1"	0.167"	0.062"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-142	50	000000000	00000




						4-40

						1/8"	0.219"	0.08"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-11	100	000000000	00000


						3/16"	0.219"	0.08"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-12	100	000000000	00000
						1/4"	0.219"	0.08"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-13	100	000000000	0000
						5/16"	0.219"	0.08"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-14	100	000000000	0000
						3/8"	0.219"	0.08"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-15	100	000000000	00000
						7/16"	0.219"	0.08"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-16	100	000000000	00000
						1/2"	0.219"	0.08"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-17	100	000000000	00000
						9/16"	0.219"	0.08"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-120	100	000000000	00000
						5/8"	0.219"	0.08"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-18	100	000000000	0000
						3/4"	0.219"	0.08"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-19	100	000000000	00000
						7/8"	0.219"	0.08"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-20	50	000000000	0000


						1"	0.219"	0.08"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-21	50	000000000	00000
						1 1/8"	0.219"	0.08"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-121	50	000000000	00000
						1 1/4"	0.219"	0.08"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-22	50	000000000	00000
						1 3/8"	0.219"	0.08"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-122	50	000000000	00000
						1 1/2"	0.219"	0.08"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-23	10	000000000	0000




								6-32

								1/8"	0.27"	0.097"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-24	50	000000000	00000


								3/16"	0.27"	0.097"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-25	100	000000000	00000
								1/4"	0.27"	0.097"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-26	100	000000000	00000
								5/16"	0.27"	0.097"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-27	100	000000000	00000
								3/8"	0.27"	0.097"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-28	100	000000000	00000
7/16"								0.27"	0.097"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-29	100	000000000	00000
1/2"	0.27"							0.097"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-30	100	000000000	00000
9/16"	0.27"							0.097"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-123	50	000000000	00000
5/8"	0.27"							0.097"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-31	50	000000000	00000
3/4"	0.27"							0.097"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-32	50	000000000	0000
7/8"	0.27"	0.097"						Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-33	50	000000000	00000


1"	0.27"	0.097"	Fully Threaded					80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-34	50	000000000	00000
1 1/8"	0.27"	0.097"	Fully Threaded					80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-124	25	000000000	0000
1 1/4"	0.27"	0.097"	Fully Threaded					80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-35	25	000000000	0000
1 3/8"	0.27"	0.097"	Fully Threaded					80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-125	25	000000000	0000
1 1/2"	0.27"	0.097"	Fully Threaded					80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-36	25	000000000	0000
1 3/4"	0.27"	0.097"	Fully Threaded					80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-37	25	000000000	00000
2"	0.27"	0.097"	Fully Threaded					80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-38	25	000000000	00000




		8-32

		3/16"	0.322"					0.115"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-40	50	000000000	00000


		1/4"	0.322"					0.115"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-41	50	000000000	0000
		5/16"	0.322"					0.115"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-42	50	000000000	0000
		3/8"	0.322"					0.115"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-43	50	000000000	0000
		7/16"	0.322"					0.115"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-44	50	000000000	0000
		1/2"	0.322"	0.115"				Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-45	50	000000000	00000
		9/16"	0.322"	0.115"	Fully Threaded			80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-126	25	000000000	00000
		5/8"	0.322"	0.115"	Fully Threaded			80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-46	25	000000000	0000
		3/4"	0.322"	0.115"	Fully Threaded			80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-47	25	000000000	0000
		7/8"	0.322"	0.115"	Fully Threaded			80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-48	25	000000000	0000
		1"	0.322"	0.115"	Fully Threaded			80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-49	25	000000000	00000


		1 1/4"	0.322"	0.115"	Fully Threaded			80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-50	25	000000000	00000
		1 1/2"	0.322"	0.115"	Fully Threaded			80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-51	25	000000000	00000
		1 3/4"	0.322"	0.115"	Fully Threaded			80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-52	25	000000000	00000
		2"	0.322"	0.115"	Fully Threaded			80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-53	25	000000000	00000




				10-24

				1/4"	0.373"			0.133"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-59	50	000000000	00000


				5/16"	0.373"			0.133"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-60	50	000000000	00000
				3/8"	0.373"			0.133"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-61	50	000000000	00000
				1/2"	0.373"			0.133"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-63	50	000000000	00000
				5/8"	0.373"			0.133"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-64	50	000000000	00000
				3/4"	0.373"			0.133"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-65	25	000000000	00000
				1"	0.373"			0.133"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM51576	MS51957-67	25	000000000	00000
				1 1/4"	0.373"	0.133"		Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-68	25	000000000	00000
				1 1/2"	0.373"	0.133"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-69	25	000000000	00000
				2"	0.373"	0.133"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-71	10	000000000	00000




						1/4"-20

						5/16"	0.492"	0.175"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-76	25	000000000	00000


						3/8"	0.492"	0.175"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-77	25	000000000	00000
						1/2"	0.492"	0.175"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-79	25	000000000	00000
						5/8"	0.492"	0.175"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-80	25	000000000	00000
						3/4"	0.492"	0.175"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-81	25	000000000	00000
						7/8"	0.492"	0.175"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-82	10	000000000	0000
						1"	0.492"	0.175"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-83	10	000000000	0000
						1 1/4"	0.492"	0.175"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-84	10	000000000	00000
						1 1/2"	0.492"	0.175"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-85	10	000000000	00000
						2"	0.492"	0.175"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-87	10	000000000	00000




								5/16"-18

1/2"	0.615"							0.218"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-94	10	000000000	00000


3/4"	0.615"							0.218"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-96	10	000000000	00000
1"	0.615"							0.218"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-98	10	000000000	00000
1 1/2"	0.615"							0.218"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-100	10	000000000	00000
2"	0.615"							0.218"	Fully Threaded	80,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35	MS51957-102	5	000000000	00000


Black-Oxide 18-8 Stainless Steel







										4-40

										3/16"	0.219"	0.08"	Fully Threaded	80,000	Fed. Spec. FF-S-92	MS51957-12B	25	000000000	0000


										1/4"	0.219"	0.08"	Fully Threaded	80,000	Fed. Spec. FF-S-92	MS51957-13B	25	000000000	0000
										3/8"	0.219"	0.08"	Fully Threaded	80,000	Fed. Spec. FF-S-92	MS51957-15B	25	000000000	0000
										1/2"	0.219"	0.08"	Fully Threaded	80,000	Fed. Spec. FF-S-92	MS51957-17B	25	000000000	0000
		3/4"								0.219"	0.08"	Fully Threaded	80,000	Fed. Spec. FF-S-92	MS51957-19B	25	000000000	0000




										6-32

										1/4"	0.27"	0.097"	Fully Threaded	80,000	Fed. Spec. FF-S-92	MS51957-26B	25	000000000	0000


										3/8"	0.27"	0.097"	Fully Threaded	80,000	Fed. Spec. FF-S-92	MS51957-28B	25	000000000	00000
										1/2"	0.27"	0.097"	Fully Threaded	80,000	Fed. Spec. FF-S-92	MS51957-30B	25	000000000	0000
										3/4"	0.27"	0.097"	Fully Threaded	80,000	Fed. Spec. FF-S-92	MS51957-32B	25	000000000	00000
										1"	0.27"	0.097"	Fully Threaded	80,000	Fed. Spec. FF-S-92	MS51957-34B	10	000000000	0000




				8-32

				1/4"	0.322"							0.115"	Fully Threaded	80,000	Fed. Spec. FF-S-92	MS51957-41B	25	000000000	0000


				3/8"	0.322"							0.115"	Fully Threaded	80,000	Fed. Spec. FF-S-92	MS51957-43B	25	000000000	00000
				1/2"	0.322"							0.115"	Fully Threaded	80,000	Fed. Spec. FF-S-92	MS51957-45B	10	000000000	0000
				3/4"	0.322"							0.115"	Fully Threaded	80,000	Fed. Spec. FF-S-92	MS51957-47B	10	000000000	0000
				1"	0.322"							0.115"	Fully Threaded	80,000	Fed. Spec. FF-S-92	MS51957-49B	10	000000000	0000




												1/4"-20

												1/2"	0.492"	0.175"	Fully Threaded	80,000	Fed. Spec. FF-S-92	MS51957-79B	5	000000000	0000


												3/4"	0.492"	0.175"	Fully Threaded	80,000	Fed. Spec. FF-S-92	MS51957-81B	5	000000000	0000
						1"						0.492"	0.175"	Fully Threaded	80,000	Fed. Spec. FF-S-92	MS51957-83B	5	000000000	00000