براغي رأس مقبس M36-4 × 200 مم | محرك مقبس سداسي | خيط جزئي | فئة 12.9 سبيكة فولاذ أكسيد أسود حراري

Needed high-strength bolts for a jig build, and these M36 partially threaded screws handled the torque without any flex. The black oxide finish is a nice touch, too.

The hex socket drive on these screws grips my Allen wrench perfectly, and the partially threaded shaft made aligning my jig components much easier. They’re solid and precise, exactly what I needed for a heavy-duty tooling project.

The thermal black oxide finish on these screws is holding up beautifully in my tooling jig setup, even with heavy use. The hex socket drive gives a solid grip without any stripping worries. Exactly the heavy-duty fasteners I needed for precision work.