براغي رأس كبس M14-2 × 65 مم | محرك سداسي | ملولبة جزئيًا | فولاذ سبائكي فئة 12.9 مع أكسيد أسود حراري (25/عبوة)

Installed these in a jig for a CNC project and the hex socket drive made seating them with an allen key effortless. The black oxide finish is holding up well in my shop environment, no rust after a couple of weeks.

I used these screws to repair a heavy-duty jig, and the hex socket drive let me torque them down properly without slipping. The black oxide finish hasn't shown any wear after a few weeks of use.

The partially threaded design made aligning these M14 screws in my tooling setup much easier than fully-threaded options I've tried before. The black oxide coating seems durable and hasn't chipped during installation.