براغي رأس مقبس 7/16-20 × 3/8 بوصة | محرك مقبس سداسي | خيط كامل | فولاذ سبائكي مؤكسد أسود حراريًا (100 قطعة/عبوة)

Used a handful of these for a jig on my drill press, and the hex socket drive held up perfectly under torque without stripping. The 3/8" length was just right for fastening thin brackets in a tight spot.

The black oxide finish on these screws looks great and resists rust, and the hex socket drove in perfectly without stripping. I used them to secure a metal bracket on a milling fixture, and they held tight under vibration.

Exactly what I needed for a jig I was building — the 7/16-20 thread cut cleanly into the tapped hole without any binding. The black oxide finish feels sturdy and looks professional against the steel parts. Fast shipping and a good price for a full pack of 100.