براغي تثبيت ذات رأس مقبس نقطة كوب 7/16-20 × 5/8 بوصة | فولاذ سبائكي (100 / عبوة)

These set screws drive in smoothly with a hex key and the cup point grips the shaft really firmly. A full 100-pack easily covered my whole project and some spares.

Finally, a set screw that holds tight in my machinery adjustments without stripping. The hex socket drive lets me really torque them down in confined spots, and the cup point bites beautifully. Exactly what I needed for that stubborn pulley.

These alloy steel screws felt solid handling them, and the cup point grabbed firmly when I tightened them down. Only minor gripe is the package didn't include a hex key, but they worked perfectly for my application.