براغي رأس أسطواني M16-2 × 110 مم | محرك سداسي | ملولبة بالكامل | فولاذ سبائكي فئة 12.9 أكسيد أسود حراري (25/عبوة)

The 12.9 grade hardness is exactly what I needed for my jig setup, and the fully threaded length gives me plenty of adjustment room. They threaded into the tapped holes without any binding, which says a lot about the tolerances. Solid purchase for a precision assembly.

The hex socket drive on these M16-2 screws made installation a breeze, and the fully threaded design provides excellent grip. I used them for a jig assembly, and the thermal black oxide finish looks professional.

Black oxide finish on these M16 screws held up perfectly when I torqued them down in a milling fixture—no galling at all. The hex socket drive made installation straightforward with no stripped heads. Solid choice for tooling work.