براغي غطاء مقبس M3-0.5 × 22 مم | رأس مسطح محرك مقبس سداسي | ملولب جزئيًا | فئة 12.9 سبيكة فولاذ مطلية بالزنك (400 / عبوة)

Finally, a box of M3s that doesn't skimp on the hex socket depth — the driver bites every time, even after a dozen removals. The zinc plating has held up nicely on my precision assemblies, and the 12.9 grade steel feels seriously rigid for the price.

I've been using these for some jig fixtures and was pleasantly surprised by the threading quality—every screw threaded smoothly without any binding or cross-threading. The partially threaded design made them perfect for my precision assembly needs.

The flat hex drive held the driver perfectly without stripping, which made installing these in my jig a breeze. For M3 screws, the 12.9 alloy steel feels plenty sturdy, and the partial threading gave just the right grip in the blind hole. Really solid fasteners for precision work.