براغي ذات رأس أسطواني 1/2-13 × 7/8 بوصة | محرك سداسي | صناعة أمريكية | فولاذ سبائكي مع أكسيد أسود حراري (140 / عبوة)

The black oxide finish on these screws is holding up perfectly in my jig setup, and the hex socket drive makes installation quick with an allen key. The alloy steel feels tough and precise, just what I needed for a tight assembly. A solid batch of fasteners that delivered exactly what I expected.

I needed a good batch of socket cap screws for a jig I’m building, and these are machined cleanly with no burs. The hex socket drive grips perfectly with my Allen key, and the black oxide finish looks professional.

The black oxide finish on these screws is flawless and resists scratches better than any hardware store stuff I've used. I put them on a jig for my drill press and they seated perfectly without any binding. Just solid, USA-made fasteners for when you need them to hold tight.