براغي ذات رأس أسطواني M6-1 X 8mm | محرك سداسي برأس مسطح | كامل الخيوط | فئة 12.9 من سبائك الصلب مطلي بالزنك (600 / عبوة)

I needed some quality fasteners for a jig I was building, and these M6 screws held up perfectly. The zinc plating looks even and consistent across all 600 pieces, which is a nice touch.

The hex socket drive makes seating these in tight jigs surprisingly easy, no stripped corners even with a cheap Allen key. The zinc plating looks uniform and the 12.9 hardness is exactly what I needed for repeated torque on my fixture plates. These 600 screws came sorted neatly, no oily residue, an

I needed small cap screws for a precision assembly, and the hex socket drive on these makes them easy to tighten in tight spots without stripping. Class 12.9 steel feels tough enough for my tooling jigs.