M16 X 25mm 杯頭內六角止付螺絲 | 合金鋼鍍鋅 (50 / 包)

I needed a precise fit for a heavy-duty jig, and the hex socket drive let me get these screws torqued down even in a cramped bracket. The cup point bit into the shaft firmly without slipping.

These set screws have a nice sharp cup point that bites into the shaft without slipping, and the hex drive makes installation easy even in tight spots. The zinc plating looks clean and should resist rust well.

I needed some heavy-duty screws for a recent build, and these M16x25mm cup point set screws worked perfectly—the cup point tip seated flush without any wobble. The hex socket drive grabbed easily even in a cramped spot, and the zinc plating looks clean and rust-resistant so far.