براغي رأس مقبس M5-0.8 × 12 مم | محرك سداسي المقبس | ملولبة بالكامل | فئة 12.9 من سبائك الفولاذ مطلية بالزنك (600 / عبوة)

The hex socket drive seated perfectly on my Allen key, no stripping at all, and the zinc plating looks consistent across all 600 pieces. For the price per screw, these are a solid deal for anyone doing precision assemblies or tooling work.

Installed these in a custom jig this morning, and the hex socket drive handled the torque perfectly without stripping. The zinc plating on this 12.9 alloy steel set looks consistent and should resist rust well.

For the price, getting 600 fully threaded 12.9 alloy steel screws in one pack is great value, and the zinc plating seems even and durable on these M5s. I did notice a few screws had slightly uneven threads, but they still seated fine in most of my jig builds.