هولو-كروم 72296 براغي ذات رأس أسطوانية 5/8-11 × 6-1/2 بوصة | محرك سداسي | فولاذ سبائكي بأكسيد حراري أسود (10 / عبوة)

Pulled my lathe tailstock back into alignment using these, and the alloy steel handled the torque without any sign of galling. The hex socket drive gave a nice solid engagement too.

The thermal black oxide finish on these socket cap screws gave them a nice, even look, and they threaded perfectly into my tooling jig without any binding. I’ve had cheaper bolts strip before, but these held up to full torque.

I needed a set of sturdy bolts for a jig I was building, and these black oxide screws fit perfectly without any stripping. The 5/8-11 threading was precise and the 6-1/2" length was exactly what the plans called for.