9⁄16"-18 Thread Socket Head Screws

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Unified Standard Class 3A

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Thread Spacing

DFARS Specialty Metals

Specifications Met

Tensile Strength

60,000 psi to 99,999 psi

100,000 psi or greater

Thread Direction

Right Hand

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

Yes

Head Height

9/16"

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







				9/16"-18

				3/4"	27/32"	9/16"	Fully Threaded	Fine	170,000	ASTM A574	1	91251A696	00000


				1"	27/32"	9/16"	Fully Threaded	Fine	170,000	ASTM A574	1	91251A697	0000
				1 1/2"	27/32"	9/16"	Fully Threaded	Fine	170,000	ASTM A574	1	91251A698	0000
				1 3/4"	27/32"	9/16"	Fully Threaded	Fine	170,000	ASTM A574	1	91251A699	0000
				2"	27/32"	9/16"	Fully Threaded	Fine	170,000	ASTM A574	1	91251A700	0000
				2 1/2"	27/32"	9/16"	Partially Threaded	Fine	170,000	ASTM A574	1	91251A701	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	Specs. Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				9/16"-18

				1"	27/32"	9/16"	Fully Threaded	Fine	70,000	ASME B18.3	1	92196A696	000000


				1 1/2"	27/32"	9/16"	Fully Threaded	Fine	70,000	ASME B18.3	1	92196A697	00000
				2"	27/32"	9/16"	Fully Threaded	Fine	70,000	ASME B18.3	1	92196A698	00000
				2 1/2"	27/32"	9/16"	Partially Threaded	Fine	70,000	ASME B18.3	1	90696A239	0000
				3"	27/32"	9/16"	Partially Threaded	Fine	70,000	ASME B18.3	1	90696A241	0000
				3 1/2"	27/32"	9/16"	Partially Threaded	Fine	70,000	ASME B18.3	1	90696A242	0000
				4"	27/32"	9/16"	Partially Threaded	Fine	70,000	ASME B18.3	1	90696A243	0000
				5"	27/32"	9/16"	Partially Threaded	Fine	70,000	ASME B18.3	1	90696A244	00000
				6"	27/32"	9/16"	Partially Threaded	Fine	70,000	ASME B18.3	1	90696A245	00000

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"-18

	1/2"	1/4"	Rockwell C45	ASME B18.3, ASTM F912	1	91375A406	000000


	3/4"	1/4"	Rockwell C45	ASME B18.3, ASTM F912	1	91375A407	00000
	1"	1/4"	Rockwell C45	ASME B18.3, ASTM F912	1	91375A408	00000
	1 1/4"	1/4"	Rockwell C45	ASME B18.3, ASTM F912	1	91375A411	00000
	1 1/2"	1/4"	Rockwell C45	ASME B18.3, ASTM F912	1	91375A412	00000