براغي رأس أسطواني بمقبس سداسي M6-1 X 45mm | رأس زر بمقبس سداسي | سن كامل | فولاذ سبائكي فئة 12.9 أكسيد أسود حراري (200/عبوة)

The hex drive held up perfectly under high torque on a jig I’m building—no stripping at all. Black oxide finish looks great and seems to resist rust better than the zinc-coated ones I’ve tried.

I needed some high-strength screws for a jig I’m building, and these M6-1 x 45mm cap screws fit perfectly—the black oxide coating gives them a nice, uniform finish without any burrs. They drive smoothly with a hex key and feel solid for tooling work.

The hex socket drive on these M6-1 screws made tightening them into my jig setup incredibly easy, no stripping at all. The black oxide finish looks great and seems durable for repeated use. Exactly what I needed for precision assemblies.