براغي هولو-كروم 72200 7/16-14 × 1-3/4 بوصة برأس أسطواني | محرك سداسي | سبائك فولاذية بأكسيد حراري أسود (50/عبوة)

I’ve been using these for jig builds on a milling machine and the hex socket drive makes installation a lot quicker compared to regular hex heads. They’re strong enough to really torque down without any issues.

The black oxide finish on these screws looks clean and seems durable—held up well during assembly of a small machine fixture. The hex socket drive made them easy to tighten without stripping.

Bought these for a precision jig I was building and the threads cut cleanly without any binding. The black oxide finish makes them look professional and held up well under torque.