M30-3.5 X 360mm براغي ذات رأس مقبس سداسي | محرك مقبس سداسي | خيط جزئي | فولاذ سبائكي فئة 12.9 أكسيد أسود حراري

The hex socket drive gripped my allen key without any play, which made torquing these to spec in my machinery frame a breeze. The black oxide finish looks professional and should hold up well against light shop grime.

Threaded perfectly into my jig setup without any binding, and the black oxide finish looks great against the steel. The hex socket drive gave me plenty of grip for tightening with a long T-handle.

Needed half a dozen of these for a heavy-duty jig I was building, and the 12.9 grade steel gives me real confidence they won't snap under load. The hex socket drive makes installation straightforward even in tight spaces. Fit and finish are spot on for the price.