Button Head Cap 1/4 x 1/2 BSW Black Gr.10.9 BS 2470

Button Head Cap Screw
Hexagon Socket Button Head
Imperial BSW
Steel Grade 10.9
Dia: 1/4'
Length: 1/2'
Tpi: 20
BS 2470
Allen Key Size: 5/32'
A BSW (British Standard Whitworth) socket button head cap screw is an imperial-sized fastener with a low-profile, domed head and an internal hexagonal drive, designed primarily for aesthetic applications and where a standard cap screw's height is problematic.