Grub Screw 4BA x 1/8 Black Gr.10.9 BS 2470

Grub Screw
Hexagon Head
Black Imperial BA
High Tensile Grade 10.9
Dia: 4BA
TPI: 38.46
Length: 1/8'
BS 2470
Allen Key Size: 1/16'
A BA (British Association) grub screw, also referred to as a socket set screw, is a small, headless imperial fastener designed to lock components onto shafts or within precision assemblies. It uses the specialized BA thread form, which was historically the standard for miniature engineering in the United Kingdom.