براغي رأس مقبس M3-0.5 × 5 مم | محرك سداسي رأس مسطح | ملولبة بالكامل | فولاد سبائكي فئة 12.9 مطلي بالزنك (600 / عبوة)

The hex socket drive on these M3 screws grips the Allen key perfectly, no stripping. Used them to secure a small jig fixture, and the Class 12.9 alloy steel feels incredibly tough. A solid buy for precision work.

I needed a bunch of these for a small jig I was building, and the zinc plating looks clean and consistent across all 600 pieces. They thread smoothly into tapped holes without binding, which saved me a lot of frustration.

The hex socket drive bites cleanly with a 1.5mm Allen key, and all 600 pieces arrived with consistent threads and plating. I’ve used maybe fifty so far on a tooling fixture and none have stripped. Class 12.9 strength gives me confidence these won’t shear under load.