براغي رأس مقبس M3-0.5 × 8 مم | رأس زر محرك مقبس سداسي | ملولبة بالكامل | فئة 10.9 فولاذ سبائكي أكسيد أسود حراري (900 / عبوة)

The black oxide finish on these M3 screws looks clean and professional, and they threaded smoothly into my 3D printer's aluminum bed without any binding. For a 900-piece pack at this quality level, the price is hard to beat.

I needed some small, strong fasteners for a jig I’m building, and these M3 button head screws fit perfectly without stripping. The hex drive bites well, and the black oxide coating looks clean and seems durable.

The black oxide finish on these M3 screws gives them a nice, professional look, and they held up perfectly during my jig assembly. The 900-piece pack is great value for the price, and the hex drive worked cleanly with my driver.