براغي ذات رأس أسطواني 1/2-13 × 2-1/2 بوصة | محرك سداسي منخفض الرأس | ملولبة جزئيًا | فولاذ سبائكي مع أكسيد أسود حراري (50 / عبوة)

The black oxide finish on these gives them a nice grippy texture that doesn’t feel slick when wrenching. Threads cut cleanly into my steel plate without binding, and the low head profile saves me real clearance on a tight tooling setup. Solid value for a box of fifty.

Installed these on a jig fixture I’m building and the low head profile gave me just enough clearance under the clamp plate. The hex socket drive feels precise and didn’t cam out at all.

The black oxide finish on these screws looks great and resists scuffing way better than the silver ones I usually get. Threads are clean and they seat perfectly in my drill jig.