براغي رأس مقبس M16-2 X 45mm | رأس مسطح محرك سداسي | ملولب بالكامل | فئة 10.9 فولاذ سبائكي مؤكسد أسود حراريًا (50 / عبوة)

The hex socket drive grips perfectly with a standard Allen key, and the 10.9 alloy steel feels rock solid when torqued down on my jig. Threads were clean right out of the package, no burrs or binding. These are my new go-to for heavy machinery repairs.

Used these on a jig I was building, and the 45mm length was exactly what I needed to secure a thick bracket. The hex socket drive made installation smooth, and the black oxide finish looks clean.

The black oxide finish looks properly done, no patchy spots on any of the 50 pieces. Threads are clean and the 10.9 grade feels reassuringly hard when torquing down a jig, though I wish the flats were slightly more machined for a perfect fit.