M3-0.5 × 20mm براغي ذات رأس أسطواني | محرك سداسي | خيط كامل | فولاذ سبائكي فئة 12.9 مطلي بالزنك (600 / عبوة)

Installed a full set of these in a metalworking jig last week and the hex socket drive made tightening them so much easier than using a Phillips. The zinc plating feels consistent and none have stripped under moderate torque yet.

Roughly two weeks of daily use in my jig setup and these haven’t stripped or corroded a bit, the zinc plating holding up nicely under shop dust. The 12.9 alloy steel feels genuinely sturdy for the price, though I wish they included a spare hex key in the bag.

The hex socket drive grips my Allen key perfectly, no stripping even after torquing them down on a fixture plate. For a bulk box of 600, the zinc finish looks uniform and none arrived with damaged threads.