براغي كاب بمقبس مقاس 5/8-18 × 8 بوصة | مقبس سداسي | ملولبة جزئيًا | فولاذ سبائكي مع أكسيد أسود حراري (10 / عبوة)

I’ve been using these in a press fixture and the black oxide finish is holding up well against shop grime. The 8" length gives me plenty of grip for thick plates, and the hex socket drives smoothly with a ball-end Allen key.

My jig fixture finally has screws long enough to bite into the threaded insert on the other side, and the hex socket drive made seating them effortless. They threaded cleanly without any binding.

The black oxide finish on these screws gave them a slick, uniform look straight out of the package, and the hex socket drive made torquing them into my jig frame a breeze. They held up perfectly under repeated clamping pressure without any stripping or galling. Exactly what I needed for a heavy-duty