M540 PSSTMCZ100-
TR FASTENINGS M540 PSSTMCZ100- 机械螺丝, M5, 40 mm, 亮锌, 钢, 一字盘头
The is a M5 x 40mm metric pan head slotted Machine Screw made of bright zinc-plated steel.
Newark:
# TR FASTENINGS M540 PSSTMCZ100- SCREW, SLT, PAN, STEEL, BZP, M5X40