براغي ذات رأس أسطواني 9/16-18 X 3/4" | محرك سداسي | ملولبة بالكامل | فولاذ سبائكي مؤكسد أسود حراري (50 / عبوة)

I needed some strong fasteners for a jig I was building, and the black oxide coating on these has a nice, even finish that feels durable. They threaded cleanly into tapped holes without any binding, which saved me time. A solid choice for precision work.

The hex socket drive made installation a breeze with my T-handle wrench, and the black oxide finish looks clean on the shop bench. Only wish the 50-count pack came in a reusable container instead of the standard bag.

Bought these for a jig I was building and the black oxide finish looks clean and professional. Threads cut smoothly into the steel, no binding or cross-threading issues. Only wish the package came with a few extra washers.