M8 x 55mm 杯頭內六角止付螺絲 | 合金鋼鍍鋅 (100顆/包)

Had to tighten a few machine guards in tight corners and the hex socket drive made it so much easier than fumbling with a wrench. These M8x55mm screws held fast without stripping, and the zinc plating cleaned up nicely with just a rag. Exactly what I needed for a solid, secure fastening.

These cup point set screws worked perfectly for locking down a gear on my lathe. The hex socket drive made it easy to tighten them firmly even in a tight spot, and the zinc plating looks clean.

Installed a full set of these on my milling machine's locking collars, and the hex socket made tightening them in cramped spaces so much easier. No slipping at all with that cup point design.