براغي رأس كبس بمقبس سداسي 5/8-11 × 6-1/2 بوصة | صناعة أمريكية | فولاذ سبائكي مع أكسيد أسود حراري (40/عبوة)

The black oxide finish looks even better in person than on screen, and the threading is clean enough that they seated without any binding. I’ve been using them to mount a heavy jig plate and the full 6-1/2" length gave me plenty of grip. For the price of a 40-pack, these are a solid buy.

Needed longer socket cap screws for a press fixture, and these USA-made ones fit the bill perfectly. The black oxide finish gives them a nice, durable look, and the hex drive seated cleanly without any cam-out.

Installed these on a heavy-duty jig I’m building, and the black oxide finish didn’t chip during tightening. The 5/8-11 thread engaged smoothly with the nut—felt solid and precise.