Stud 5/16 x 2 1/4 BSW Engineering Black Gr.4 DIN 939

Engineering Stud
Imperial BSW
Black / Self Color
Mild Steel Grade 4
Dia: 5/16
TPI: 18
Length: 2.1/4'
Also known as an "engineer’s stud" or "tap-end stud," is a headless fastener with BSW threads on both ends separated by an unthreaded shank. It is designed for semi-permanent installation into machine components where the material requires deeper thread engagement than standard bolts.