براغي ذات رأس مقبس M10-1.5 × 130 مم | محرك سداسي | ملولبة جزئياً | فولاذ سبائكي فئة 12.9 معالجة حرارياً بأكسيد أسود (50 / عبوة)

Used a pair of these in a jig for a heavy-duty fixture, and the Class 12.9 alloy steel held up perfectly under torque. The partial threading made alignment much easier than I expected for a 130mm screw.

The black oxide finish is way more consistent than what I’ve gotten from other suppliers, and the partially threaded design makes clamping down on thick workpieces a breeze. I’ve already torqued a few down hard for tooling jigs and the hex drive didn’t strip at all.

These fit perfectly in my milling fixture and the black oxide finish gives them a clean, professional look that resists handling marks. The partial threading made installation much easier than fully threaded bolts in tight spots.