براغي رأس مقبس M14-2 × 140 مم | محرك مقبس سداسي | جزئية الخيط | فئة 12.9 سبيكة فولاذ أكسيد أسود حراري (25/عبوة)

I needed these for a jig fixture and the partially threaded design made setup much easier than fully threaded bolts would have. The hex socket drive let me torque them down precisely without any cam-out.

The black oxide finish on these M14-2 screws held up perfectly on my precision fixture—no thread galling even after repeated adjustments. I used a 6mm hex driver and the socket engagement felt solid and precise. Just the right length for blind tap applications in 10mm plate.

I was replacing bolts on a custom jig and these M14 screws fit perfectly. The 12.9 alloy steel feels incredibly sturdy under torque, and the black oxide finish adds a nice touch of corrosion resistance.