Universal hexalobular (6 Lobe) socket flat countersunk head wood screws partially threaded, cutting ribs under the head, friction thread, end mill cutter — 6 x 280 / 70 (X30)

Bossard · Direct Assembly Screws for Wood. d1: 6 | L: 280 | d2 max.: 12,2 | k max.: 6,3 | Hexalobular socket: X30 | b: 70