براغي رأس سوكيت 5/8-11 X 1-3/8" | محرك سداسي | ملولب بالكامل | فولاذ سبائكي بأكسيد أسود حراري (50 / عبوة)

I’ve used these on a couple of jigs and a fixture rebuild, and the hex socket drive is a relief compared to fumbling with wrenches in tight spots. All fifty pieces came with clean threads and a consistent black oxide coating that’s already making them look less like hardware store stock. Great value

The black oxide finish is holding up perfectly on my machinery setup, and the hex socket drive seated cleanly with no stripping. Fully threaded length gave me the grip I needed for precision assembly, and the alloy steel feels solid.

Used these to secure a heavy-duty jig on the mill table, and the black oxide coating already shows no signs of wear after a week of coolant exposure. The 5/8-11 thread cut cleanly into tapped holes without binding, and the hex socket drive felt snug from the first turn. Exactly what I needed for pre