براغي ذات رأس مقبس 3/8-16 X 2-3/4" | محرك سداسي المقبس | حبيبات نايلون | ملولبة جزئياً | سبيكة فولاذ أكسيد أسود حراري (50/عبوة)

I needed a longer fastener for a custom jig, and these delivered—the partially threaded shank gave me exactly the grip I needed without bottoming out. The black oxide finish looks clean and slid right into my fixture.

The hex socket drive makes these screws a breeze to install with a standard Allen key, and the black oxide finish looks great for jig builds. I used them to secure a heavy-duty fixture, and the partially threaded design held everything firmly in place.

The nylon pellet on these is a nice touch—it keeps the screw from backing out under vibration, which I appreciate on the jig I built. Took a few extra turns to seat them fully, but the black oxide finish looks clean and the threads engaged smoothly. Solid value for a 50-pack.