براغي رأس مقبس M5-0.8 × 35 مم | محرك مقبس سداسي | خيط جزئي | فئة 12.9 فولاذ سبائكي بأكسيد حراري أسود (600 / عبوة)

The black oxide finish on these M5 screws is flawlessly uniform, and the 12.9 hardness makes them feel rock solid for the jig I built. The hex socket drove in cleanly without any stripped edges.

I needed a batch of high-strength fasteners for a set of precision jigs, and these 12.9 alloy steel screws tightened down firmly without any hint of stripping. The 35mm length was spot-on for my application, and the partially threaded design gave me a clean clamp on the material.

The black oxide finish on these screws looks clean and should resist corrosion well in my jig builds. Threads cut smoothly into tapped holes without any binding, and the hex socket drive makes installation a breeze.