براغي رأس مقبس | 5/8-11 X 1-1/8" | محرك سداسي | ملولب بالكامل | فولاذ سبائكي مؤكسد أسود حراريًا (100 / عبوة)

The black oxide finish on these is perfect for my jig build—no glare under shop lights and they thread in smoothly without binding. The hex socket drive seated cleanly every time, and all 100 came out of the box with zero burrs or defects.

I needed a batch of sturdy bolts for a jig I'm building, and these black oxide screws fit perfectly without any stripping. The fully threaded design gave me a solid grip, and the 100-count pack was a great value for the price.

Installed these into a piece of heavy machinery tooling, and the black oxide coating held up perfectly against some light oil exposure. The hex socket drive grabbed cleanly with my Allen wrench, no stripping at all.