براغي رأس مقبس M10-1.5 × 30 مم | محرك سداسي برأس مسطح | كامل الخيوط | فئة 12.9 فولاذ سبيكي أكسيد أسود حراري (100/عبوة)

I needed some high-strength fasteners for a jig I’m building, and these 12.9 grade screws fit the bill perfectly—the fully threaded design made alignment a breeze. The hex socket drive grips well with a standard Allen key, no slipping so far.

The hex drive is nice and snug, I didn't have any cam-out issues when torquing these into a jig. The black oxide finish seems consistent across all 100 pieces, which is a plus for keeping things corrosion-resistant on my machine setup.

Installed a batch of these into a fixture jig this morning, and the 12.9 grade steel handled the torque beautifully without any deformation. The black oxide finish also seems durable enough to resist minor scratches during assembly.