مسامير تثبيت نقطة كوب M12 X 70mm | فولاذ سبائكي مطلي بالزنك (50/عبوة)

The cup point really digs in firmly—no slipping on my shaft collar even at high torque. The zinc plating looks clean and should resist rust in my garage.

These set screws have a really solid hex socket that grips the Allen key perfectly, so you can really torque them down. The cup point bites into the shaft firmly without slipping, which is exactly what I needed for a stubborn gear hub.

I was worried about stripping the cup point during install, but the zinc plating held up and the hex drive seated perfectly in my wrench. These 70mm screws torqued down firm in a tight spot where I couldn't fit a regular bolt.