براغي رأس كبس 5/16-24 × 1-3/4" | محرك سداسي | صنع في أمريكا | سبيكة فولاذية مؤكسدة حرارياً سوداء (1000 / عبوة)

Installed these in a jig I'm building and the threads cut cleanly without any binding. Good to have a full box on hand for future projects.

The black oxide finish on these screws looks and feels like quality—they seated perfectly into my jig without any stripping. For 5/16-24 socket cap screws, this batch has been consistent in thread depth across the whole box.

I’m rebuilding a jig for my shop and needed a full box of these to avoid running out mid-project. The hex socket drive seated cleanly with my Allen wrench, and the alloy steel feels sturdy enough for repeat clamping loads. They’re uniform and threaded smoothly without any burrs.