Box FPF II CZF 4,0x50 BC 500 PZ Fisher

White zinc plated screws, moisture protection – extend durability. These countersunk head screws with rifled shank and PZ cross drive. The partial thread with rifled shank in the middle ensure fast bite and forms a gap between the screw and board, which prevents screw head removal as the board expands or shrinks. The screw features underhead milled ribbing that enable perfect screw rotation and screwing close to edges with no crack formation