براغي رأس مقبس M2-0.4 × 6 مم | رأس مسطحة بمحرك مقبس سداسي | ملولبة بالكامل | فولاذ سبائكي فئة 12.9 بأكسيد حراري أسود (400 / عبوة)

Used a few of these to secure a jig on my CNC machine, and the black oxide finish held up perfectly without any corrosion. The flat head sits flush, which was exactly what I needed for a tight assembly.

Used a handful of these to secure a small jig on my CNC router, and the black oxide finish held up to cutting oil without any rust after a week. The hex socket drive made them easier to install than tiny Phillips heads I’ve struggled with. Best hardware purchase for precision work I've made this yea

Finally, a socket cap screw that doesn’t strip the hex drive on me—these M2s are solid. The black oxide finish feels tough and looks great on my jig build. Perfect fit for tight assemblies.