M3-0.5 X 6mm 內六角皿頭螺絲 | 平頭內六角驅動 | 全牙 | 12.9級合金鋼鍍鋅 (900顆/包)

Installing these into my 3D printer’s carriage plate was a breeze—the flat head sits flush without any interference. The included 900 pieces mean I won’t run out anytime soon, and the zinc finish looks clean. Definitely solid for precision assembly work.

The hex socket drive on these M3 screws grips the driver firmly, so I didn't strip a single head while assembling my precision fixture. Even at 900 per pack, the threads are clean and consistent on every one I've checked. Zinc plating looks uniform and should hold up fine in my dry shop environment.

I needed a bunch of small screws for a jig I'm building, and these 12.9 alloy steel ones feel much tougher than the usual stainless stuff I've used. The zinc plating looks clean and consistent across all 900 pieces.