9/16"-12 Set Screws | McMaster-Carr

Filter by

System of Measurement

Length

Tip Type

Drive Size

Material

Fastener Head Type

Drive Style

Finish

Thread Spacing

Thread Type

Export Control Classification Number (ECCN)

Hardness

REACH

RoHS

Thread Fit

Unified Standard Class 3A

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

Thread Direction

Right Hand

Specifications Met

ASME B18.3

ASTM F912

DFARS Specialty Metals

Performance

10 Products

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

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