براغي مقبس كوب بقع نايلون 5/8-11 × 1-1/4 بوصة | فولاذ سبائك (50 / عبوة)

The hex socket drive made tightening these into a tight spot on my machine frame much easier than I expected. The cup point really bites down securely once it's seated.

The nylon patch on these set screws really locks them in place, even under vibration on my milling machine. I used a full pack to secure a hold-down fixture and they haven't budged, which is exactly what I needed for heavy-duty work.

Swapping out the old screws was a breeze with the hex socket drive—no more stripped heads in tight spots. The nylon patch is a nice touch, holding firm without any loosening. These cup points give a solid, flush fit in my setup.