براغي رأس أسطوانية M6-1 X 22mm | محرك سداسي داخلي | سن كامل | فولاذ سبائكي فئة 12.9 مطلي بالزنك (400/عبوة)

The threading is crisp and consistent all the way down, so they start clean even in tight holes. Used them to rebuild a fixture on my mill and every one of the 400 seated without a hiccup. Solid value for class 12.9 hardware.

The hex socket drive seated perfectly with my Allen key, and the 12.9 alloy steel feels rock solid when torqued into my fixture. Threads ran smooth the whole way in, and the zinc plating is already holding up nicely against light shop grime.

I swapped out some generic bolts on my jig and these M6 socket cap screws fit perfectly. The 12.9 alloy steel feels noticeably tougher, and the zinc plating should keep rust away in my shop.