براغي ذات رأس مقبس M2.5-0.45 × 3 مم | محرك مقبس سداسي برأس زر | ملولبة بالكامل | فولاذ سبائكي من الفئة 12.9 مؤكسد أسود حراري (400 / عبوة)

I needed some tiny but strong screws for a small jig I was building, and these M2.5 x 3mm ones fit perfectly with their hex socket drive. The Class 12.9 steel feels much more robust than standard hardware, so I'm confident they won't strip during assembly.

The black oxide finish on these screws is a nice touch—helps with identification during assembly. The 12.9 grade gives me confidence they’ll hold up in the jig I’m building, and the 400-count bag is great value for the price.

I've been using these M2.5 button heads to assemble small CNC fixtures, and the black oxide finish hasn't shown any wear after a few months of repeated use. The hex drive grabbed perfectly on every single screw out of the 400.