Grub Screw 1/2 x 1.3/4 (13tpi) UNC Black Gr.10.9 BS 2470

Grub Screw
Hexagon Head
Black Imperial UNC
High Tensile Grade 10.9
Dia: 1/2'
TPI: 13
Length: 1.3/4'
BS 2470
Allen Key Size: 1/4'
A UNC (Unified Coarse) grub screw, also known as a socket set screw, is a headless, fully threaded imperial fastener used to lock components onto shafts or within assemblies where a fine thread pitch is required for precision and stability.