براغي رأس مقبس M10-1.25 × 35 مم | محرك مقبس سداسي | ملولبة بالكامل | فئة 12.9 فولاذ سبائكي أكسيد أسود حراري (100 / عبوة)

I needed some high-strength fasteners for a machine press jig, and these 12.9 alloy steel screws handled the torque without any stripping. The black oxide finish looks clean and professional, too.

These M10 screws fit perfectly into my jig fixtures without any wobble. The black oxide finish gives them a clean, professional look that resists rust nicely. Exactly the quality I expect from Class 12.9 hardware.

Finally, a batch of cap screws where the black oxide finish actually holds up without rubbing off during installation. The hex socket drive engaged perfectly with my Allen key, and every single screw threaded smoothly.