1-1/4-7 Socket Head Cap Screws

1-1/4-7 Socket Head Cap Screws | The Nutty Company, Inc.

1-1/4-7 Socket Head Cap Screws

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

Specifications

Size: 1-1/4"-7 (USS coarse)
Lengths: 2", 2-1/2", 3", 3-1/2", 4", 4-1/2", 5", 6", 7", 8"
Hex key: 7/8"
Tap drill: 1-7/64"
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 1-1/4"-7 socket head cap screw?
A 7/8" hex key (Allen wrench).

What tap drill do I use for 1-1/4"-7?
Use a 1-7/64" 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.