HOLO-KROME 60134 1/2-13 X 2" براغي رأس مقبس سداسي | رأس مسطح محرك سداسي | فولاد سبائكي مؤكسد أسود حراري (50 / عبوة)

Bought these for a jig I was building and they fit perfectly with no wobble. The black oxide coating gives them a nice, consistent finish that looks clean against the steel. Worked great for the precision assembly I needed.

The hex socket drive on these 1/2-13 bolts grabbed my Allen wrench securely without any wobble, making assembly on my jig a breeze. The thermal black oxide coating feels tough and uniform, nothing like the cheap painted finishes I've returned before.

Threads were clean and sharp out of the box, seated perfectly in my jig without any wobble. The black oxide finish feels rugged and the hex drive grabbed my wrench without stripping. Solid purchase for the price.