Grub Screw 5/16 x 1/4 BSW Black Gr.10.9 BS 2470
Grub Screw
Hexagon Head
Black Imperial BSW
High Tensile Grade 10.9
Dia: 5/16'
TPI: 18
Length: 1/4'
BS 2470
Allen Key Size: 5/32'
A BSW (British Standard Whitworth) grub screw, also known as a socket set screw, is a headless, fully threaded imperial fastener used to secure components—such as gears, pulleys, or collars—onto a shaft.