MS 24671 Socket Head Cap Screws

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Military Specification

Fed. Spec. QQ-P-35

Military Specification

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Length

Material

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Countersink Angle

Fastener Head Type

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DFARS Specialty Metals

Head Diameter

Thread Direction

Drive Size

Thread Type

Tensile Strength

70,000 psi to 99,999 psi

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

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EAR99

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Unified Standard Class 3A

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29 Products

Stainless Steel Hex-Drive Flat Head Screws

The most corrosion-resistant hex-drive flat head screws we offer. Made of stainless steel, they won't rust or corrode when exposed to moisture and chemicals, but they're not as strong as alloy steel. With six contact points, the hex drive withstands more torque than slotted and Phillips to securely grip your driver without slipping and stripping the drive.

Length is measured from the top of 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.

Standard Profile—Standard-profile heads are the most common choice for flat head screws.

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

				Head
	Lg.	Countersink Angle	Flat Head Profile	Dia.	Ht.	Threading	Tensile Strength, psi	Mil. Spec.	Certificate Type		Each
18-8 Stainless Steel







				4-40

				1/4"	82°	Standard	0.255"	0.083"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-1	Material Certificate	94518A105	00000


				3/8"	82°	Standard	0.255"	0.083"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-2	—	94518A108	0000
				1/2"	82°	Standard	0.255"	0.083"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-3	—	94518A111	0000
				5/8"	82°	Standard	0.255"	0.083"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-4	—	94518A112	0000
				3/4"	82°	Standard	0.255"	0.083"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-5	—	94518A114	0000




						6-32

						1/4"	82°	Standard	0.307"	0.097"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-7	—	94518A209	0000


						3/8"	82°	Standard	0.307"	0.097"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-8	Material Certificate	94518A210	0000
						1/2"	82°	Standard	0.307"	0.097"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-9	—	94518A213	0000
						5/8"	82°	Standard	0.307"	0.097"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-10	—	94518A216	0000
						3/4"	82°	Standard	0.307"	0.097"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-11	—	94518A220	0000




								8-32

								3/8"	82°	Standard	0.359"	0.112"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-13	Material Certificate	94518A310	0000


								1/2"	82°	Standard	0.359"	0.112"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-14	—	94518A313	0000
								3/4"	82°	Standard	0.359"	0.112"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-16	—	94518A316	0000
								1"	82°	Standard	0.359"	0.112"	Partially Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-17	—	94518A320	0000




										10-24

										3/8"	82°	Standard	0.411"	0.127"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-19	—	94518A413	0000


										1/2"	82°	Standard	0.411"	0.127"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-20	—	94518A415	0000
										5/8"	82°	Standard	0.411"	0.127"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-21	—	94518A416	0000
										3/4"	82°	Standard	0.411"	0.127"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-22	—	94518A418	0000
										1"	82°	Standard	0.411"	0.127"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-23	—	94518A421	0000




												1/4"-20

												1/2"	82°	Standard	0.531"	0.161"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-28	—	94518A510	0000


												5/8"	82°	Standard	0.531"	0.161"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-29	Material Certificate	94518A519	0000
3/4"												82°	Standard	0.531"	0.161"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-30	Material Certificate	94518A515	0000
1"	82°											Standard	0.531"	0.161"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-31	Material Certificate	94518A520	0000
1 1/2"	82°											Standard	0.531"	0.161"	Partially Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-33	—	94518A525	0000




		5/16"-18

		3/4"	82°									Standard	0.656"	0.198"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-40	—	94518A615	00000


		1"	82°									Standard	0.656"	0.198"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-41	—	94518A620	00000
		1 1/2"	82°									Standard	0.656"	0.198"	Partially Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-43	Material Certificate	94518A625	00000




												3/8"-16

				3/4"	82°							Standard	0.781"	0.234"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-51	—	94518A649	00000


				1"	82°							Standard	0.781"	0.234"	Fully Threaded	70,000	Fed. Spec. QQ-P-35, MS24671-52	—	94518A650	00000