HOLO-KROME 76577 براغي ذات رأس أسطواني بمقبس سداسي M24-3 X 160mm | محرك مقبس سداسي | فولاذ سبائكي مع أكسيد أسود حراري (5 / عبوة)

Replaced the old bolts on a milling fixture with these, and the thermal black oxide finish is holding up perfectly against coolant splashes. The 160mm length fit exactly into the threaded holes I had.

Used these in a custom jig build and the black oxide finish held up perfectly under tight clamping pressure. The hex socket drive made it easy to torque them down precisely with no cam-out. Really solid fasteners for the money.

Installed these on a heavy-duty fixture and the black oxide finish took the wrenching without a single scratch. Threads cut clean and the hex socket seated perfectly, no wobble at all. Exactly what I needed for the precision assembly work.