HOLO-KROME 730003360 براغي ذات رأس أسطواني 3/4-16 X 8" | محرك سداسي داخلي | سبائك فولاذية مؤكسدة باللون الأسود الحراري (10/عبوة)

Installed a set of these on a tooling fixture I’m building and the black oxide finish held up perfectly against the wrenching—no galling at all. The hex socket drive gave me good torque control, even in a tight spot.

The threading on these 3/4-16 screws is clean and consistent, which made them a perfect fit for my jig setup. They feel solid and well-made right out of the package.

Was a bit skeptical about the black oxide finish holding up, but after torquing these into a jig frame, the coating hasn't chipped or faded at all. The hex drive seated perfectly with no cam-out, and the full 8-inch length gave me plenty of thread engagement.