Hexalobular (6 Lobe) socket pan head tapping screws with cone end type C — ST 4,2 x 45 / X20

Bossard · Thread Forming and Tapping Screws for Metal. d1: ST 4,2 | L: 45 | d2 max.: 8 | k max.: 3,1 | Hexalobular socket: X20 | t max.: 1,8 | A~: 3,95