HOLO-KROME 72260 1/2-13 X 7" براغي ذات رأس أسطواني | محرك سداسي | فولاد سبائكي مع طبقة أكسيد أسود حراري (10 / عبوة)

Installed these in a drill press fixture I’m building, and the black oxide finish held up perfectly against metal shavings and coolant. The socket drive gave me solid torque without any stripping, and the 7-inch length was just what I needed.

Replaced the old generic bolts on my mill with these and the black oxide finish looks great against the machine's dark frame. The hex drive seated perfectly without any stripping issues.

Installed these in a jig I was building and the black oxide coating held up well against minor wear during test runs. The hex drive seated cleanly and the 7-inch length was exactly right for the through-hole I needed.