براغي رأس مقبس M18-2.5 × 130 مم | محرك مقبس سداسي | خيط جزئي | فولاذ سبائكي درجة 12.9 بأكسيد حراري أسود (10 / عبوة)

These bolts cinched down on my milling fixture with zero wobble, and the black oxide finish kept them from fighting me when I torqued them to spec. The partial threading gives just the right grip for a 130mm reach without binding.

Used these for a custom jig base where the clamping load matters, and the black oxide finish handled the shop grime without a trace of rust. The 130mm length gave me just enough thread engagement on a thick stack-up, and the hex socket drive seated cleanly every time.

The 12.9 alloy steel feels incredibly robust for my jig assembly project, and the partial threading on these 130mm screws gave me just the right grip depth. I had to apply some torque, but the hex socket held up perfectly without stripping.