7/8-9 Socket Head Cap Screws

7/8-9 Socket Head Cap Screws | The Nutty Company, Inc.

7/8-9 Socket Head Cap Screws

7/8"-9 socket head cap screws in USS coarse (UNC) thread, made from heat treated alloy steel with a black oxide finish. We stock 1-1/2", 1-3/4", 2", 2-1/4", 2-1/2", 2-3/4", 3", 3-1/2", 4", 4-1/2", 5", 5-1/2", 6", 7", 8" lengths. They take a 3/4" hex key. Shorter lengths are fully threaded (FT) and longer lengths partially threaded (PT).

Specifications

Size: 7/8"-9 (USS coarse)
Lengths: 1-1/2", 1-3/4", 2", 2-1/4", 2-1/2", 2-3/4", 3", 3-1/2", 4", 4-1/2", 5", 5-1/2", 6", 7", 8"
Hex key: 3/4"
Tap drill: 49/64"
Material: alloy steel, ASTM A574
Finish: black oxide
Strength: 170,000 psi minimum tensile strength (ASTM A574)

Common Uses

Machinery and tooling
Jigs and fixtures
Counterbored holes

FAQ

What hex key fits a 7/8"-9 socket head cap screw?
A 3/4" hex key (Allen wrench).

What tap drill do I use for 7/8"-9?
Use a 49/64" drill for a standard 75% thread.

Will black oxide socket screws rust?
Black oxide is a thin conversion finish with a light oil. It gives mild rust protection indoors and a clean dark look, but it is not made for outdoor or wet use. For outdoor, wet or washdown areas, use our stainless steel socket screws.

Free shipping on orders over $100, and orders placed before noon EST ship the same day. Purchase orders are accepted from government agencies, schools, hospitals, municipalities and companies with established credit with The Nutty Company, Inc.