Pozi pan head tapping screws with collar, form Z and cone end type C — ST 4,2 x 19

Bossard · Thread Forming and Tapping Screws for Metal. d1: ST 4,2 | L: 19 | d2 max.: 9,75 | k max.: 2,36 | c max.: 1,1 | Pozidriv: 2 | m~: 4,3