براغي ضبط مقبس نقطة كوب 1/4-20 × 3/16 بوصة | فولاذ سبائكي مطلي بالزنك (500/عبوة)

Installed these to secure a gear on a CNC mill shaft and the hex socket drive made tightening them in that cramped spot surprisingly easy. The cup point bit into the shaft firmly without slipping. Good value for a bulk pack of precision hardware.

I needed a high-torque set screw for a jig I was building, and these cup points bite into soft metal better than I expected. The hex socket drive makes adjusting them in cramped spots a breeze. A solid pack for the price.

These little screws fit perfectly into my jig setup, and the hex socket made tightening them in a cramped corner a breeze. For 500 pieces, the zinc plating looks clean and consistent across the whole bag.