M20 X 30mm 杯頭止付螺絲 | 18/8 不鏽鋼 (50 / 包)

I needed a high-torque set screw for a heavy-duty fixture, and the stainless steel handled the tight space perfectly without stripping. The cup point bit into the shaft nicely, and the 18/8 material gives me confidence it won't rust.

The hex socket drive makes torquing these down in awkward spots a breeze, and the cup point bites firmly into the shaft. Used them on a repair where I needed a solid lock, and they haven't budged since.

These set screws are perfect for my jig build, the 18/8 stainless steel feels solid and the cup point bites firmly into the shaft. No stripping issues with the hex socket drive even under heavy torque.