Socket Head Cap 3/8 x 2.1/2 BSF Black Gr.12.9 BS 2470
Cap Screw
Hexagon Socket Head
Imperial BSF Black
High Tensile Grade 12.9
Dia: 3/8'
TPI: 20
Length: 2.1/2'
BS 2470
Allen Key Size: 5/16'
A BSF (British Standard Fine) socket head cap screw is an imperial, high-strength fastener with a fine thread pitch, commonly used in British engineering and automotive applications where high clamping force and resistance to vibration are required.