6mm-1.0 x 8mm x 57mm x 40mm Hex Socket Shoulder Screws (3 pcs.)

Diameter: 6mm
Shoulder Length: 40mm
Overall Length: 57mm
Material: Steel
Finish: Plain
Head Style: Socket (4mm Hex)
Thread Size: 1.0mm (Coarse)
Thread Length: 11mm
Hardness: Class 12.9
Type: Shoulder Bolt
Specifications: ISO 7379

Box of 3.

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.