This part specifies the characteristics (8.8, 10.9, 12.9, A2-50, A2-70, A3-50, A3-70, A4-50, A4-70, A5-50, A5-70, CU 2 and CU 3) of hexagon socket head cap screws with coarse pitch thread from M 1.6 up to and including M64 and product grade A.