براغي رأس كاب بمقبس M10-1.5 × 160 مم | محرك مقبس سداسي | خيط جزئي | فولاذ سبائكي فئة 12.9 بأكسيد أسود حراري (25 / عبوة)

Finally got around to swapping out the old jig bolts with these and the partially threaded design made alignment much easier. The black oxide finish looks clean and the hex drive seated perfectly with no slippage.

I needed some long high-strength bolts for a custom jig, and these 160mm partial-threaded ones fit perfectly. The hex socket drive made installation easy even in a tight spot.

The black oxide finish on these screws is properly done, no flaking even after I torqued them down in a steel fixture. The 12.9 alloy steel feels genuinely tough, and the 160mm length gave me plenty of thread engagement for the thick plate stack I was bolting up.