براغي رأس كبس M12-1.75 × 90 مم | رأس مسطح سداسي | خيط جزئي | فولاذ سبائكي كلاس 12.9 مؤكسد أسود حراري (50 / عبوة)

The threading on these is clean and consistent across all 50 pieces—no burrs or galling when I ran a nut down each one. The black oxide finish held up fine against the oily shop rags I use, and the 90mm length sits flush in my tooling blocks without binding.

Installed these on a jig fixture I'm building, and the partial threading made alignment much easier. The hex socket drive gripped tight without any stripping, and the Class 12.9 alloy steel feels seriously strong.

The partially threaded design on these M12 cap screws made aligning them in my jig fixtures much easier than fully threaded ones. The black oxide finish looks clean and seems durable, and they fit perfectly in the hex driver I use for tooling projects.