براغي رأس أسطواني M8-1.25 X 35mm | محرك سداسي | رقعة نايلون | خيط كامل | فولاذ سبائكي فئة 12.9 مؤكسد أسود حراري (300 / عبوة)

The black oxide finish wiped clean easily and left no residue on my fingers, which was a nice surprise for a bulk pack. Threaded all 300 into jig fixtures without a single stripped drive or binding issue. These are solidly built for the price.

Threading these into a precision assembly was a breeze thanks to the nylon patch, which held them snugly without any extra Loctite. The black oxide finish looks great on my machine tooling, and the 300-count box means I’ve got plenty for future projects. Really solid feel for the price.

Used a handful of these for a jig I was building and the black oxide finish gives them a nice consistent look. The hex socket drive fits my Allen key perfectly with zero wobble.