M640 PRSTMCZ100-

DURATOOL  M640 PRSTMCZ100-  机械螺丝, M6, 40 mm, 亮锌, 钢, 米字盘头

The is a M6 x 40mm clear pan head Pozidriv Machine Screw made of bright zinc-plated steel.

Newark:
# DURATOOL  M640 PRSTMCZ100-  Machine Screw, M6, Steel, 40 mm, Zinc, Pan Head Pozidriv