NAS Flat Head Screws | McMaster-Carr

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Finish

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DFARS Specialty Metals

Threading

Thread Type

Tensile Strength

60,000 psi to 69,999 psi

70,000 psi to 99,999 psi

REACH

Tip Type

RoHS

Performance

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

Yes

Hardness

Rockwell B70

Not Rated

Thread Fit

Unified Standard Class 2A

Not Rated

Export Control Classification Number (ECCN)

EAR99

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195 Products

Drive Style

Phillips

A common drive style that aligns easily with drivers

188 products

Slotted

A simple yet effective drive style for light duty tasks

7 products

Performance

Corrosion Resistant

Resist corrosion from moisture, chemicals, and harsh weather

160 products

Flat Head Profile

Standard

The most common head profile for flat head screws

193 products

Stainless Steel Phillips Flat Head Screws

These screws are made of stainless steel, so they won't rust or corrode when exposed to moisture and chemicals. The Phillips drive has a cross-shaped opening in which a driver fits snugly for easy alignment. With four contact points, they withstand more torque than slotted drives, but drivers slip when you apply too much force.

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.

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.

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	Specs. Met	Mil. Spec.	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				0-80

				3/16"	100°	Standard	0.119"	0.026"	Fully Threaded	70,000	NASM24693	MS24693-C420	50	93085A841	00000


				1/4"	100°	Standard	0.119"	0.026"	Fully Threaded	70,000	NASM24693	MS24693-C421	50	93085A842	0000
				5/16"	100°	Standard	0.119"	0.026"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C422	50	96877A749	0000
				3/8"	100°	Standard	0.119"	0.026"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C423	50	96877A751	0000




						2-56

						1/8"	100°	Standard	0.172"	0.037"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C16	50	93085A010	0000


						5/32"	100°	Standard	0.172"	0.037"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C17	50	93085A013	0000
						3/16"	100°	Standard	0.172"	0.037"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NAS662C2R3, SAE AMS2700	—	100	93085A015	00000
						1/4"	100°	Standard	0.172"	0.037"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NAS662C2R4, SAE AMS2700	—	100	93085A017	00000
						5/16"	100°	Standard	0.172"	0.037"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NAS662C2R5, SAE AMS2700	—	100	93085A019	00000
						3/8"	100°	Standard	0.172"	0.037"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NAS662C2R6, SAE AMS2700	—	100	93085A021	00000
						1/2"	100°	Standard	0.172"	0.037"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NAS662C2R8, SAE AMS2700	—	100	93085A023	00000
						5/8"	100°	Standard	0.172"	0.036"	Fully Threaded	70,000	Fed. Spec. FF-S-92, NAS662C2R10	—	50	93085A838	0000
						3/4"	100°	Standard	0.172"	0.036"	Fully Threaded	70,000	Fed. Spec. FF-S-92, NAS662C2R12	—	50	93085A839	0000




								4-40

								3/16"	100°	Standard	0.225"	0.049"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C1	100	93085A105	00000


								1/4"	100°	Standard	0.225"	0.049"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C2	100	93085A106	00000
								5/16"	100°	Standard	0.225"	0.049"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C3	100	93085A107	00000
								3/8"	100°	Standard	0.225"	0.049"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C4	100	93085A108	00000
								7/16"	100°	Standard	0.225"	0.049"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C5	100	93085A109	00000
								1/2"	100°	Standard	0.225"	0.049"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C6	100	93085A110	00000
								5/8"	100°	Standard	0.225"	0.049"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C7	100	93085A112	00000
								3/4"	100°	Standard	0.225"	0.049"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C8	50	93085A113	00000
								7/8"	100°	Standard	0.225"	0.049"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C9	50	93085A116	00000
								1"	100°	Standard	0.225"	0.049"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C10	25	93085A119	0000
								1 1/8"	100°	Standard	0.225"	0.049"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C11	25	93085A122	0000


								1 1/4"	100°	Standard	0.225"	0.049"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C12	50	93085A851	00000
								1 1/2"	100°	Standard	0.225"	0.049"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C14	25	93085A852	0000




										6-32

										3/16"	100°	Standard	0.279"	0.06"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C23	100	93085A143	00000


1/4"										100°	Standard	0.279"	0.06"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C24	100	93085A144	00000
5/16"	100°									Standard	0.279"	0.06"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C25	100	93085A145	00000
3/8"	100°									Standard	0.279"	0.06"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C26	100	93085A146	00000
7/16"	100°									Standard	0.279"	0.06"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C27	50	93085A147	00000
1/2"	100°									Standard	0.279"	0.06"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C28	50	93085A148	00000
5/8"	100°	Standard								0.279"	0.06"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C29	50	93085A150	00000
3/4"	100°	Standard	0.279"							0.06"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C30	50	93085A151	00000
7/8"	100°	Standard	0.279"							0.06"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C31	50	93085A152	00000
1"	100°	Standard	0.279"							0.06"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C32	25	93085A154	0000
1 1/8"	100°	Standard	0.279"							0.06"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C33	25	93085A155	0000


1 1/4"	100°	Standard	0.279"							0.06"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C34	25	93085A157	00000
1 1/2"	100°	Standard	0.279"							0.06"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C36	10	93085A159	0000
2"	100°	Standard	0.279"							0.06"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C40	10	93085A163	0000
2 1/2"	100°	Standard	0.279"							0.06"	Partially Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C42	10	96877A752	00000




		8-32

		1/4"	100°	Standard	0.332"					0.072"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C46	50	93085A190	00000


		5/16"	100°	Standard	0.332"					0.072"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C47	50	93085A191	00000
		3/8"	100°	Standard	0.332"					0.072"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C48	50	93085A192	00000
		7/16"	100°	Standard	0.332"					0.072"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C49	50	93085A193	0000
		1/2"	100°	Standard	0.332"					0.072"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C50	50	93085A194	00000
		5/8"	100°	Standard	0.332"					0.072"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C51	50	93085A196	00000
		3/4"	100°	Standard	0.332"					0.072"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C52	50	93085A197	00000
		7/8"	100°	Standard	0.332"					0.072"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C53	25	93085A198	0000
		1"	100°	Standard	0.332"					0.072"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C54	25	93085A199	00000
		1 1/8"	100°	Standard	0.332"					0.072"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C55	25	93085A201	00000
		1 1/4"	100°	Standard	0.332"					0.072"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C56	25	93085A203	00000


		1 1/2"	100°	Standard	0.332"	0.072"	Fully Threaded			70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C58	10	93085A205	0000
		1 3/4"	100°	Standard	0.332"	0.072"	Fully Threaded			70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C60	10	93085A853	0000
		2"	100°	Standard	0.332"	0.072"	Fully Threaded			70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C62	10	93085A854	0000
		2 1/2"	100°	Standard	0.332"	0.072"	Partially Threaded			70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C64	10	96877A753	0000




				10-24

				5/16"	100°	Standard	0.385"			0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C69	50	96877A754	00000


				3/8"	100°	Standard	0.385"			0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C70	25	93085A239	00000
				7/16"	100°	Standard	0.385"			0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C71	25	96877A755	0000
				1/2"	100°	Standard	0.385"			0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C72	25	93085A242	00000
				5/8"	100°	Standard	0.385"			0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C73	25	93085A244	0000
				3/4"	100°	Standard	0.385"			0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C74	10	93085A245	0000
				1"	100°	Standard	0.385"			0.083"	Fully Threaded	70,000	NASM24693	MS24693-C76	25	93085A843	00000
				1 1/4"	100°	Standard	0.385"			0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C78	10	96877A757	0000
				1 1/2"	100°	Standard	0.385"			0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C80	10	96877A758	0000
				2"	100°	Standard	0.385"			0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C84	10	96877A759	0000




						10-32

						1/4"	100°	Standard	0.385"	0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C268	25	93085A825	0000


						5/16"	100°	Standard	0.385"	0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C269	25	93085A823	0000
						3/8"	100°	Standard	0.385"	0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C270	50	93085A827	00000
						7/16"	100°	Standard	0.385"	0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C271	50	93085A828	00000
						1/2"	100°	Standard	0.385"	0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C272	25	93085A829	00000
						5/8"	100°	Standard	0.385"	0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C273	25	93085A830	00000
						3/4"	100°	Standard	0.385"	0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C274	25	93085A831	00000
						7/8"	100°	Standard	0.385"	0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C275	25	93085A832	00000
						1"	100°	Standard	0.385"	0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C276	25	93085A833	00000
						1 1/8"	100°	Standard	0.385"	0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C277	10	96877A761	0000
						1 1/4"	100°	Standard	0.385"	0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C278	10	93085A835	0000


						1 3/8"	100°	Standard	0.385"	0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C279	10	96877A762	0000
						1 1/2"	100°	Standard	0.385"	0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C280	10	93085A837	0000
1 5/8"						100°	Standard	0.385"	0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C281	10	96877A763	0000
1 3/4"	100°					Standard	0.385"	0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C282	10	93085A855	00000
1 7/8"	100°					Standard	0.385"	0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C283	10	96877A764	00000
2"	100°					Standard	0.385"	0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C284	10	93085A856	0000
2 1/4"	100°					Standard	0.385"	0.083"	Partially Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C285	10	96877A765	00000
2 1/2"	100°					Standard	0.385"	0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C286	10	93085A857	00000




						1/4"-20

						3/8"	100°	Standard	0.507"	0.11"	Fully Threaded	70,000	NASM24693	MS24693-C92	25	93085A844	00000


						7/16"	100°	Standard	0.507"	0.11"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C93	10	96877A766	00000
						1/2"	100°	Standard	0.507"	0.11"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C94	10	93085A537	00000
						5/8"	100°	Standard	0.507"	0.11"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C95	10	93085A539	00000
						3/4"	100°	Standard	0.507"	0.11"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C96	25	93085A540	00000
						1"	100°	Standard	0.507"	0.11"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C98	10	93085A542	0000
						1 1/8"	100°	Standard	0.507"	0.11"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C99	10	96877A767	00000
						1 1/4"	100°	Standard	0.507"	0.11"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C100	10	93085A544	00000
						1 1/2"	100°	Standard	0.507"	0.11"	Fully Threaded	70,000	NASM24693	MS24693-C102	10	93085A845	00000
						1 3/4"	100°	Standard	0.507"	0.11"	Fully Threaded	70,000	NASM24693	MS24693-C104	10	93085A846	00000
						2"	100°	Standard	0.507"	0.11"	Fully Threaded	70,000	NASM24693	MS24693-C106	10	93085A847	00000




						1/4"-28

						3/8"	100°	Standard	0.507"	0.11"	Fully Threaded	70,000	NASM24693	MS24693-C292	25	93085A848	00000


						7/16"	100°	Standard	0.507"	0.11"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C293	10	96877A768	0000
						1/2"	100°	Standard	0.507"	0.11"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C294	10	93085A557	0000
						5/8"	100°	Standard	0.507"	0.11"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C295	10	93085A558	0000
						3/4"	100°	Standard	0.507"	0.11"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C296	10	93085A559	00000
						7/8"	100°	Standard	0.507"	0.11"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C297	10	93085A560	00000
						1"	100°	Standard	0.507"	0.11"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C298	10	93085A561	00000
						1 1/8"	100°	Standard	0.507"	0.11"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C299	10	96877A769	00000
						1 1/4"	100°	Standard	0.507"	0.11"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C300	10	93085A563	00000
						1 1/2"	100°	Standard	0.507"	0.11"	Fully Threaded	70,000	NASM24693	MS24693-C302	10	93085A849	00000
				1 5/8"		100°	Standard	0.507"	0.11"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C303	5	96877A771	00000


				1 3/4"	100°	Standard	0.507"	0.11"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C304	5	96877A772	00000
				1 7/8"	100°	Standard	0.507"	0.11"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C305	1	96877A773	0000
				2"	100°	Standard	0.507"	0.11"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-C306	1	96877A774	0000


				Black-Oxide 18-8 Stainless Steel







								0-80

								3/16"	100°	Standard	0.119"	0.026"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-420B	25	93085A657	0000




										2-56

										1/8"	100°	Standard	0.172"	0.037"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-16B	25	93085A619	00000


										5/32"	100°	Standard	0.172"	0.037"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-17B	25	93085A621	00000




										4-40

										3/16"	100°	Standard	0.225"	0.049"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-1B	25	93085A611	00000


										1/4"	100°	Standard	0.225"	0.049"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-2B	25	93085A612	0000
										5/16"	100°	Standard	0.225"	0.049"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-3B	25	93085A613	00000
										3/8"	100°	Standard	0.225"	0.049"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-4B	25	93085A614	00000
										7/16"	100°	Standard	0.225"	0.049"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-5B	25	93085A615	0000
										1/2"	100°	Standard	0.225"	0.049"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-6B	25	93085A616	00000
										5/8"	100°	Standard	0.225"	0.049"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-7B	25	93085A617	00000
										3/4"	100°	Standard	0.225"	0.049"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-8B	25	93085A618	0000




			6-32

			3/16"								100°	Standard	0.279"	0.06"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-23B	25	93085A622	0000


			1/4"								100°	Standard	0.279"	0.06"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-24B	25	93085A623	0000
			5/16"								100°	Standard	0.279"	0.06"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-25B	25	93085A624	00000
			3/8"								100°	Standard	0.279"	0.06"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-26B	25	93085A625	00000
			7/16"								100°	Standard	0.279"	0.06"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-27B	25	93085A626	00000
			1/2"								100°	Standard	0.279"	0.06"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-28B	25	93085A627	0000
			5/8"								100°	Standard	0.279"	0.06"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-29B	25	93085A628	00000
			3/4"								100°	Standard	0.279"	0.06"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-30B	25	93085A629	00000
			7/8"								100°	Standard	0.279"	0.06"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-31B	25	93085A631	00000
			1"								100°	Standard	0.279"	0.06"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-32B	25	93085A632	00000




												8-32

												1/4"	100°	Standard	0.332"	0.072"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-46B	25	93085A633	0000


												5/16"	100°	Standard	0.332"	0.072"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-47B	25	93085A634	00000
												3/8"	100°	Standard	0.332"	0.072"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-48B	25	93085A635	00000
				7/16"								100°	Standard	0.332"	0.072"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-49B	25	93085A636	0000
				1/2"	100°							Standard	0.332"	0.072"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-50B	25	93085A637	00000
				5/8"	100°							Standard	0.332"	0.072"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-51B	25	93085A638	00000
				3/4"	100°							Standard	0.332"	0.072"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-52B	25	93085A639	00000
				7/8"	100°							Standard	0.332"	0.072"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-53B	25	93085A641	00000
				1"	100°	Standard						0.332"	0.072"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-54B	10	93085A642	0000




						10-32

						1/4"	100°					Standard	0.385"	0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-268B	25	93085A643	00000


						5/16"	100°	Standard	0.385"			0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-269B	25	93085A644	00000
						3/8"	100°	Standard	0.385"			0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-270B	25	93085A645	00000
						7/16"	100°	Standard	0.385"			0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-271B	25	93085A646	00000
						1/2"	100°	Standard	0.385"			0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-272B	25	93085A647	00000
						5/8"	100°	Standard	0.385"			0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-273B	25	93085A648	00000
						3/4"	100°	Standard	0.385"			0.083"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-274B	10	93085A649	0000
7/8"						100°	Standard	0.385"	0.083"			Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-275B	10	93085A651	0000
1"	100°					Standard	0.385"	0.083"	Fully Threaded			70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-276B	10	93085A652	0000




						1/4"-20

						1/2"	100°	Standard	0.507"			0.11"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-94B	10	93085A653	00000


						5/8"	100°	Standard	0.507"			0.11"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-95B	10	93085A654	00000
						3/4"	100°	Standard	0.507"			0.11"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-96B	10	93085A655	00000
						1"	100°	Standard	0.507"			0.11"	Fully Threaded	70,000	Fed. Spec. FF-S-92, Fed. Spec. QQ-P-35, NASM24693, SAE AMS2700	MS24693-98B	10	93085A656	00000

Steel Phillips Flat Head Screws

One of the most common drive styles. Phillips drives have a cross-shaped opening in which a driver fits snugly for easy alignment. With four contact points, they withstand more torque than slotted drives, but drivers slip when you apply too much force.

Length is measured from the top of the head.

Cadmium-Plated Steel—The plating reduces friction between the screw and your mounting surface to prevent sticking when you tighten or loosen them. It also creates a barrier against rust.

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

Undercut Profile—About a third thinner than standard heads, the undercut profile fits into shallow holes in thin material. The thin head also has more threading on the shaft, so they're often used to keep short screws from coming loose.

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	Specs. Met	Mil. Spec.	Pkg. Qty.		Pkg.
Cadmium-Plated Steel







				4-40

				3/16"	82°	Undercut	0.225"	0.047"	Fully Threaded	60,000	NASM35190	MS35190-220	100	91321A111	000000


				3/16"	100°	Standard	0.225"	0.049"	Fully Threaded	60,000	NASM24693	MS24693-S1	100	94023A111	0000
				1/4"	82°	Standard	0.225"	0.067"	Fully Threaded	60,000	NASM35190	MS35190-221	100	91321A112	00000
				1/4"	100°	Standard	0.225"	0.049"	Fully Threaded	60,000	NASM24693	MS24693-S2	100	94023A112	00000
				3/8"	82°	Standard	0.225"	0.067"	Fully Threaded	60,000	NASM35190	MS35190-223	100	91321A113	00000
				3/8"	100°	Standard	0.225"	0.049"	Fully Threaded	60,000	NASM24693	MS24693-S4	100	94023A113	00000
				1/2"	82°	Standard	0.225"	0.067"	Fully Threaded	60,000	NASM35190	MS35190-225	100	91321A114	00000
				1/2"	100°	Standard	0.225"	0.049"	Fully Threaded	60,000	NASM24693	MS24693-S6	100	94023A114	00000




						6-32

						1/4"	82°	Standard	0.279"	0.083"	Fully Threaded	60,000	NASM35190	MS35190-234	100	91321A115	00000


						1/4"	100°	Standard	0.279"	0.06"	Fully Threaded	60,000	NASM24693	MS24693-S24	100	94023A115	00000
						3/8"	82°	Standard	0.279"	0.083"	Fully Threaded	60,000	NASM35190	MS35190-236	100	91321A116	00000
						3/8"	100°	Standard	0.279"	0.06"	Fully Threaded	60,000	NASM24693	MS24693-S26	100	94023A116	00000
						1/2"	82°	Standard	0.279"	0.083"	Fully Threaded	60,000	NASM35190	MS35190-238	100	91321A117	00000
						1/2"	100°	Standard	0.279"	0.06"	Fully Threaded	60,000	NASM24693	MS24693-S28	50	94023A117	0000
						3/4"	82°	Standard	0.279"	0.083"	Fully Threaded	60,000	NASM35190	MS35190-240	100	91321A118	00000




								8-32

								1/4"	82°	Undercut	0.332"	0.07"	Fully Threaded	60,000	NASM35190	MS35190-249	100	91321A119	00000


								3/8"	82°	Standard	0.332"	0.1"	Fully Threaded	60,000	NASM35190	MS35190-251	100	91321A121	00000
								3/8"	100°	Standard	0.332"	0.072"	Fully Threaded	60,000	NASM24693	MS24693-S48	50	94023A118	0000
								1/2"	82°	Standard	0.332"	0.1"	Fully Threaded	60,000	NASM35190	MS35190-253	100	91321A122	00000
								1/2"	100°	Standard	0.332"	0.072"	Fully Threaded	60,000	NASM24693	MS24693-S50	50	94023A119	0000
								3/4"	82°	Standard	0.332"	0.1"	Fully Threaded	60,000	NASM35190	MS35190-255	100	91321A123	00000
								3/4"	100°	Standard	0.332"	0.072"	Fully Threaded	60,000	NASM24693	MS24693-S52	50	94023A121	00000




										10-32

										3/8"	82°	Standard	0.385"	0.116"	Fully Threaded	60,000	NASM35191	MS35191-270	50	91321A124	0000


										3/8"	100°	Standard	0.385"	0.083"	Fully Threaded	60,000	NASM24693	MS24693-S270	50	94023A122	00000
										1/2"	82°	Standard	0.385"	0.116"	Fully Threaded	60,000	NASM35191	MS35191-272	50	91321A125	00000
										1/2"	100°	Standard	0.385"	0.083"	Fully Threaded	60,000	NASM24693	MS24693-S272	50	94023A123	00000
										3/4"	82°	Standard	0.385"	0.116"	Fully Threaded	60,000	NASM35191	MS35191-274	50	91321A126	00000
										3/4"	100°	Standard	0.385"	0.083"	Fully Threaded	60,000	NASM24693	MS24693-S274	50	94023A124	00000
										1"	82°	Standard	0.385"	0.116"	Fully Threaded	60,000	NASM35191	MS35191-276	50	91321A127	00000
1"										100°	Standard	0.385"	0.083"	Fully Threaded	60,000	NASM24693	MS24693-S276	50	94023A125	00000




		1/4"-20

		1/2"	82°							Standard	0.507"	0.153"	Fully Threaded	60,000	NASM35190	MS35190-287	25	91321A128	00000


		1/2"	100°							Standard	0.507"	0.11"	Fully Threaded	60,000	NASM24693	MS24693-S94	25	94023A126	0000
		3/4"	82°							Standard	0.507"	0.153"	Fully Threaded	60,000	NASM35190	MS35190-289	25	91321A129	00000
		1"	82°							Standard	0.507"	0.153"	Fully Threaded	60,000	NASM35190	MS35190-291	25	91321A131	00000
		1 1/2"	82°							Standard	0.507"	0.153"	Fully Threaded	60,000	NASM35190	MS35190-293	25	91321A132	00000

Stainless Steel Slotted Flat Head Screws

The most corrosion-resistant slotted flat head screws we offer. Made of stainless steel, they won't rust or corrode when exposed to moisture or chemicals. With only two contact points, the slotted drive is the most basic drive style. The slot can't withstand much torque, so it's best to hand-tighten them instead of using power tools.

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.

				Head, mm
	Lg., mm	Countersink Angle	Flat Head Profile	Dia.	Ht.	Threading	Tensile Strength, psi	Specs. Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				M0.5 × 0.125 mm

				2	100°	Standard	0.94	0.28	Fully Threaded	70,000	NAS723CE50-080	1	91430A141	000000


				3	100°	Standard	0.94	0.28	Fully Threaded	70,000	NAS723CE50-120	1	91430A142	00000




						M0.8 × 0.2 mm

						2	100°	Standard	1.42	0.41	Fully Threaded	70,000	NAS723CE80-080	1	91430A143	0000


						3	100°	Standard	1.42	0.41	Fully Threaded	70,000	NAS723CE80-120	1	91430A144	0000




								M0.9 × 0.225 mm

								2	100°	Standard	1.52	0.38	Fully Threaded	70,000	NAS723CE90-080	1	91430A145	0000


								3	100°	Standard	1.52	0.38	Fully Threaded	70,000	NAS723CE90-120	1	91430A146	0000
								4	100°	Standard	1.52	0.38	Fully Threaded	70,000	NAS723CE90-160	1	91430A147	0000