1/2"-16 x 1-3/8" Zinc Plated Steel Hex Head Axle Bolts SBHS-074 (6 pcs.)

Diameter: 1/2"
Length: 1-3/8"
Material: Steel
Finish: Zinc
Head Style: Hex (Hex)
Thread Size: 16
Style: Axle Bolt
Type: Shoulder Bolt

Box of 6.

A shoulder screw differs from machine screws in that the shank is ground to a precise diameter, known as the shoulder, and the threaded portion is smaller in diameter than the shoulder. Shoulder bolt specifications call out the shoulder diameter, shoulder length, and threaded diameter; the threaded length is fixed, based on the threaded diameter, and usually quite short. It is usually used for revolving joints in mechanisms and linkages; when used as a guide for the stripper plate in a die set its called a stripper bolt.