براغي رأس مقبس 3/4-10 × 2-1/2" | محرك مقبس سداسي | رقعة نايلون | ملولبة بالكامل | فولاذ سبائكي مع أسود حراري (25 / عبوة)

Used these on a fixture I'm building and the threads cut clean without galling. The black oxide finish feels properly done, and the nylon patch keeps them from backing out under vibration. Good value for a 25-pack of this size.

The nylon patch on these screws holds them snug even with heavy machine vibration, which saved me from re-tightening on my press tooling. They seated cleanly into tapped holes and the black oxide finish looks professional. Exactly the grade I needed for this jig frame.

Perfect for mounting a heavy jig plate on my mill table—the hex socket drive let me get good torque without stripping. The black oxide finish looks clean and seems to resist oil stains better than plain steel.