براغي رأس مقبس M20-2.5 X 150mm | محرك سداسي | ملولبة جزئياً | فئة 12.9 سبيكة فولاذية مؤكسدة حرارياً سوداء (10 / عبوة)

The black oxide finish wiped clean easily and looks proper on the mill table, no flaking after torqueing them down. Threads engaged smoothly into the tapped holes for our fixture base, and the hex socket drive took the wrench bite without any rounding. These 12.9s feel like they'll hold up fine for

Installed these on a jig for heavy steel plate alignment and the hex socket drive took torque without any stripping. The 150mm length gave me plenty of reach, and the black oxide finish looks clean and professional.

The black oxide finish on these M20 socket cap screws looks clean and uniform, and the hex socket drive seated perfectly with my wrench. Threads are sharp and the partial threading gives me just the right grip for my press fixture.