Pozi flat countersunk head thread forming screws type M, form Z, metric thread — M 4 x 8

Bossard · Thread Forming and Tapping Screws for Metal. d1: M4 | L: 8 | d2 max.: 7,5 | k max.: 2,2 | Pozidriv: 2 | m~: 4 | t min.: 1,6 | t max.: 2,06