Countersunk Cap 1/4 x 5/8 BSF Black Gr.10.9 BS 2470

Countersunk Cap Screw
Hexagon Head
Black Imperial BSF
High Tensile Grade 10.9
Dia: 1/4'
TPI: 26
Length: 5/8'
BS 2470
Allen Key Size: 5/32'
A BSF countersunk head shoulder cap screw is a specialized imperial fastener that combines a flush-fitting head with an unthreaded shoulder. This hybrid design is primarily a custom or non-standard item, as standard BSF fasteners typically feature either a countersunk head (for flush finish) or a shoulder (for pivoting) but not both in a standard configuration.