JB/T 7384.12-1994 Fastener screw straightness inspection mold

JB/T 7384.1-1994 Fastener corner width stop end inspection mold JB/T 7384.2-1994 Fastener head sinking and semi-sinking head height inspection mold JB/T 7384.3-1994 Head height and slot of fastener and thickness inspection template between support surface JB/T 7384.4-1994 Wrenching height inspection template JB/T 7384.5-1994 Internal hex socket wrench JB/T 7384.6-1994 Internal hexagon counterbore with diameter tap gauge JB/T 7384.7-1994 The width of the slot for fasteners gauge JB/T 7384.8-1994 Slot depth gauge for fasteners JB/T 7384.9-1994 The thickness of the gap between the bottom of the slot and the supporting surface of the fastener nut is measured with a caliper JB/T 7384.10-1994 JB/T 7384.11-1994 Fastener nut thread perpendicular ruler JB/T 7384.13-1994 The outside diameter measuring gauge for self-tapping locking screws JB/T 7384.14-1994 Fastener wood screws thread pilot caliper JB/T 7384.15-1994 The gap between the two feet of the fastener testing opening pin and the amount of misalignment of the ring gauge are measured JB/T 7384.16-1994 Fastener rivet hole diameter gauge JB/T 7384.17-1994 Fastener rivet hole depth gauge JB/T 7384.18-1994 Fastener washer keyhole gauge