براغي رأس كبس M8-1.25 × 50 مم | رأس زر محرك سداسي | ملولبة بالكامل | فولاذ سبائك فئة 12.9 أكسيد أسود حراري (100 / عبوة)

The hex socket drive bites perfectly with my Allen key, no stripping even after tightening them into a steel jig. The black oxide finish gives them a clean, uniform look and they threaded in smoothly all 100 pieces.

Bought these for a custom jig I'm building, and the hex socket drive makes installation so much easier than a standard allen key. The 12.9 alloy steel feels incredibly strong, and the 50mm length was exactly what I needed for this setup.

The black oxide finish on these M8 screws is perfectly uniform and resists glancing light on the tooling jigs I’m building. The hex socket drive seated my Allen key cleanly without any wobble on the first try. Exactly the precise, burr-free threading I was hoping for.