Hex socket button head cap screws, ISO 7380

Hex socket button head cap screws.

* M2 and M2.5 are not included under ISO 7380

d1M2*M2,5*M3M4M5M6M8M10M12
d2 max3.54.55.77.69.510.51417.521
b161718202224283236
k1.31.51.652.22.753.34.45.56.6
s1.31.522.534568
t0.60.81.041.31.562.082.63.124.16