M3×3mm 平頭內六角止付螺絲 | 18/8 不鏽鋼 (200個/包)

Just the right size for securing a small gear to a shaft—the socket drive made installation much easier than a standard hex key. The 18-8 stainless finish looks clean and gives me confidence they won't rust out.

These little 18-8 stainless screws are plenty tough for holding a pulley on a shaft, and the M3 size is exactly what I needed. The flat point bites down nicely without chewing up the surface, and getting 200 in one pack means I’m set for a long time.

I swapped out the old set screws on my project for these, and the 18-8 stainless steel feels much more durable than the zinc-plated ones I used before. They fit the M3 threads perfectly on my gear shaft—no wobble at all.