3/8" Shoulder (5/16-18 Thread)

Socket Shoulder Bolt | The Nutty Company, Inc.

3/8" Shoulder (5/16-18 Thread)

3/8" socket shoulder bolts (stripper bolts) with a 5/16-18 thread, made from heat treated alloy steel. We stock shoulder lengths of 3/8", 1/2", 5/8", 3/4", 1", 1-1/4", 1-1/2", 1-3/4", 2", 2-1/4", 2-1/2", 2-3/4", 3", 3-1/2", 4". They take a 3/16" hex key, and the threaded end is 1/2" long.

Specifications

Shoulder lengths: 3/8", 1/2", 5/8", 3/4", 1", 1-1/4", 1-1/2", 1-3/4", 2", 2-1/4", 2-1/2", 2-3/4", 3", 3-1/2", 4"
Shoulder diameter: 3/8" (max / min 0.3730" / 0.3710")
Thread: 5/16-18 UNC
Thread length: 1/2"
Hex key: 3/16"
Material: alloy steel, Rockwell C32-43
Strength: 140,000 psi tensile, 120,000 psi yield

Common Uses

Stripper plates in die sets
Pivots and linkages
Roller shafts and guides

FAQ

How is a shoulder bolt measured?
By the shoulder diameter and the shoulder length. The shoulder length is measured from under the head to the start of the thread, and does not include the threaded end. The thread size is one size smaller than the shoulder.

What hole size does a 3/8" shoulder bolt need?
Ream or bore the hole for the shoulder to suit your fit; the shoulder measures 0.3730" / 0.3710" (max / min). The threaded hole is tapped 5/16-18 with a F tap drill.

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.