براغي رأس مقبس M18-2.5 × 35 مم | محرك مقبس سداسي | كامل الخيوط | فولاذ سبائكي من الفئة 12.9 معالج حرارياً وأكسيد أسود (25 / عبوة)

I needed strong screws for a jig I’m building, and these 12.9 alloy steel bolts thread smoothly and feel incredibly rigid. The black oxide coating looks nice and should resist rust in my shop. Exactly what I needed for precision work.

The hex socket drive seated perfectly on my Allen key with zero wobble, and the 12.9 alloy steel feels rock solid under tension. Used them to bolt down a jig plate and they threaded in smooth as butter, though I did need a bit of torque to get them fully seated.

The black oxide finish on these screws gives them a nice, uniform look, and they seated perfectly into my tooling fixture without any stripping.