1/4-20 Button Head Socket Cap Screws

1/4-20 Button Head Socket Cap Screws | The Nutty Company, Inc.

1/4-20 Button Head Socket Cap Screws

1/4"-20 button head socket cap screws in USS coarse (UNC) thread, made from heat treated alloy steel with a black oxide finish. We stock 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/4", 1-1/2", 1-3/4", 2", 2-1/2" lengths. They take a 5/32" hex key. They are fully threaded.

Specifications

Size: 1/4"-20 (USS coarse)
Lengths: 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/4", 1-1/2", 1-3/4", 2", 2-1/2"
Hex key: 5/32"
Tap drill: #7
Material: alloy steel, ASTM F835
Finish: black oxide
Strength: 145,000 psi minimum tensile strength (ASTM F835)

Button Socket Cap | The Nutty Company, Inc.

Common Uses

Guards and covers
Panels and enclosures
Fixtures

FAQ

What hex key fits a 1/4"-20 button head socket cap screw?
A 5/32" hex key (Allen wrench).

What tap drill do I use for 1/4"-20?
Use a #7 drill for a standard 75% thread.

Are button head socket screws as strong as socket head cap screws?
No. Button and flat head socket cap screws are made to ASTM F835, with a minimum tensile strength of 145,000 psi in 1/2" and smaller and 135,000 psi over 1/2". Their smaller socket also takes less torque, so use a socket head cap screw for high loads.

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.