M16 x 70mm 杯頭內六角止付螺絲 | 18/8 不鏽鋼 (50顆/包)

The hex socket drive made torquing these down in a cramped spot surprisingly easy, and the cup point really digs into the shaft. They held a vibration-heavy pulley solid for a full week of use, no backing out at all.

Installed these to secure a heavy jig on my workbench; the hex drive made tightening in a cramped corner much easier than a standard slotted screw would have. The stainless steel finish looks clean and feels solid enough to handle some rust exposure in my garage.

The hex socket drive made torquing these down in a cramped miter joint way easier than my old Allen key sets. Only gripe is the 18/8 steel scuffed up a bit on the cup point when I cinched them fully, but they’re holding firm so far.