M650 KRSTMCZ100-

DURATOOL  M650 KRSTMCZ100-  机械螺丝, M6, 50 mm, 亮锌, 钢, 米字平头 / 沉头

The is a M6 x 50mm clear flat/countersunk head Pozidriv Machine Screw made of bright zinc-plated steel 4.8.

Newark:
# DURATOOL  M650 KRSTMCZ100-  Machine Screw, M6, Steel, 50 mm, Zinc, Flat / Countersunk Head Pozidriv