براغي رأس مقبس M2.5-0.45 X 12mm | رأس مسطح بمحرك مقبس سداسي | ملولبة بالكامل | فئة 12.9 فولاذ سبائكي مؤكسد أسود حراريًا (600 / عبوة)

The 12.9 alloy steel is the real deal—these little screws have held tight in our jigs through a full week of vibration-heavy use. The black oxide gives them a clean, uniform finish that makes inspection quick. At 600 per pack, I’m set for months of builds.

Needed a reliable fastener for a precision assembly and these fit perfectly — the hex socket drive made tightening in tight spots a breeze. The black oxide coating hasn't shown any wear after several cycles, and the 600-count pack means I'm stocked for future projects. Exactly what I needed for the

Finally, a batch of M2.5 screws that actually fit the hex bit without stripping, and the black oxide finish on these 12.9 alloy steel ones feels tough enough for repeated use in my tooling setup.