9⁄16"-12 Thread Socket Head Screws

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Unified Standard Class 3A

Tensile Strength

60,000 psi to 99,999 psi

100,000 psi or greater

Specifications Met

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

Yes

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28 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
	Lg.	Dia.	Ht.	Threading	Thread Spacing	Tensile Strength, psi	Pkg. Qty.		Pkg.
Black-Oxide Alloy Steel







				9/16"-12

				1"	27/32"	9/16"	Fully Threaded	Coarse	170,000	1	91251A753	00000


				1 1/4"	27/32"	9/16"	Fully Threaded	Coarse	170,000	1	91251A755	0000
				1 1/2"	27/32"	9/16"	Fully Threaded	Coarse	170,000	1	91251A757	0000
				1 3/4"	27/32"	9/16"	Fully Threaded	Coarse	170,000	1	91251A758	0000
				2"	27/32"	9/16"	Fully Threaded	Coarse	170,000	1	91251A759	0000
				2 1/4"	27/32"	9/16"	Partially Threaded	Coarse	170,000	1	91251A761	0000
				2 1/2"	27/32"	9/16"	Partially Threaded	Coarse	170,000	1	91251A762	0000
				2 3/4"	27/32"	9/16"	Partially Threaded	Coarse	170,000	1	91251A763	0000
				3 1/2"	27/32"	9/16"	Partially Threaded	Coarse	170,000	1	91251A972	0000
				4"	27/32"	9/16"	Partially Threaded	Coarse	170,000	1	91251A764	0000

Stainless Steel Socket Head Screws


Fully Threaded	Partially 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
	Lg.	Dia.	Ht.	Threading	Thread Spacing	Tensile Strength, psi	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				9/16"-12

				1"	27/32"	9/16"	Fully Threaded	Coarse	70,000	1	92196A693	000000


				1 1/2"	27/32"	9/16"	Fully Threaded	Coarse	70,000	1	92196A694	00000
				2"	27/32"	9/16"	Fully Threaded	Coarse	70,000	1	92196A695	00000
				2 1/2"	27/32"	9/16"	Partially Threaded	Coarse	70,000	1	90696A234	0000
				3"	27/32"	9/16"	Partially Threaded	Coarse	70,000	1	90696A235	0000
				4"	27/32"	9/16"	Partially Threaded	Coarse	70,000	1	90696A236	0000
				5"	27/32"	9/16"	Partially Threaded	Coarse	70,000	1	90696A237	0000
				6"	27/32"	9/16"	Partially Threaded	Coarse	70,000	1	90696A238	00000

Stainless Steel Cup-Tip Set Screws

These corrosion-resistant cup-tip screws grip parts tightly. Made of stainless steel, they won't rust, but they're not as strong as alloy steel. The tip has thin edges that dig into surfaces for a secure hold. They often lock gears, pulleys, and other transmission components onto shafts.

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.

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







	9/16"-12

	1/2"	9/32"	Rockwell B80	ASME B18.3	1	92311A388	00000


	5/8"	9/32"	Rockwell B80	ASME B18.3	1	92311A389	0000
	3/4"	9/32"	Rockwell B80	ASME B18.3	1	92311A390	0000
	1"	9/32"	Rockwell B80	ASME B18.3	1	92311A391	0000

Steel Cup-Tip Set Screws

Made of alloy steel, these screws are strong enough to hold components without wearing down. The tip has thin edges that dig into surfaces for a secure hold. They often lock gears, pulleys, and other transmission components onto shafts.

Black-Oxide Alloy Steel—These screws have a dark matte finish that offers minimal corrosion resistance, so they're best for dry environments.

	Specs. Met	Pkg. Qty.		Pkg.
Black-Oxide Alloy Steel







	9/16"-12

	1/2"	1/4"	Rockwell C45	ASME B18.3, ASTM F912	1	91375A275	00000


	5/8"	1/4"	Rockwell C45	ASME B18.3, ASTM F912	1	91375A279	0000
	3/4"	1/4"	Rockwell C45	ASME B18.3, ASTM F912	1	91375A283	0000
	1"	1/4"	Rockwell C45	ASME B18.3, ASTM F912	1	91375A287	0000
	1 1/4"	1/4"	Rockwell C45	ASME B18.3, ASTM F912	1	91375A291	0000
	1 1/2"	1/4"	Rockwell C45	ASME B18.3, ASTM F912	1	91375A295	0000