براغي رأس مقبس M3-0.5 × 10 مم | محرك رأس مسطح سداسي المقبس | ملولبة بالكامل | سبيكة فولاذ فئة 12.9 مطلي بالزنك (900 / عبوة)

I needed some strong fasteners for a jig I was building out of aluminum, and these class 12.9 alloy steel screws fit perfectly. The hex socket drive made it easy to get them seated tight with a small hex key. They feel solid and well-made for the price.

The zinc plating is holding up well after a week of test fitting on my fixture jig, and the 12.9 alloy steel feels seriously tough for the price. I like that they come fully threaded, so I can use them for grip-length adjustments without worrying about reach.

The hex socket drive on these M3 screws grabs the wrench perfectly, no stripping or wobble. I've been using them for small repairs and they thread smoothly into the alloy steel parts I'm working on. Exactly what I needed for precision assemblies.