M3 X 5mm 杯頭內六角止付螺絲 | 合金鋼鍍鋅 (1000顆/包)

These little cup point screws bite down nicely on a shaft without slipping, and the zinc coating looks clean out of the bag. I used a handful to lock a gear onto a motor shaft, and they held tight through a few hours of run time.

The hex socket drive on these M3 screws gave me plenty of torque in a tight corner without stripping. They feel sturdy and the zinc plating looks clean. Perfect for a small electronics project I was working on.

The cup point really bites into the shaft without stripping, which is exactly what I need for a tight gear set. Zinc plating looks uniform and the batch of 1000 has held up well so far. Only wish they came in smaller packs since I won't use all of these for years.