براغي رأس أسطوانية M5-0.8 × 10 مم | رأس زر مع محرك سداسي | ملولبة بالكامل | فولاذ سبائكي فئة 12.9 مع أكسيد أسود حراري (600 / عبوة)

The black oxide finish on these screws is noticeably smooth and consistent, and the hex drive seated perfectly with my Allen key on the first try. They tightened down uniformly across my jig setup, with no stripped heads or wobble.

I needed some solid 12.9-grade fasteners for a jig I’m building, and these M5 button heads are holding up perfectly under heavy clamping loads. The hex socket drive made installation smooth without stripping.

The black oxide finish on these M5 screws looks really clean and uniform across the whole batch, and the hex sockets are cut sharp so my Allen key seats without any wobble. I've used about two hundred of them for tooling fixtures so far and all 600 came out of the box without a single stripped threa