براغي رأس مقبس 3/8-24 × 2-3/4 بوصة | رأس مسطح بمحرك مقبس سداسي | ملولبة جزئيًا | فولاذ سبائكي مؤكسد أسود حراريًا (50 / عبوة)

I needed some strong fasteners for a jig build, and these screws have a nice black oxide finish that resists rust well. The hex socket drive grips perfectly with a 3/8 Allen key, making installation smooth.

The partially threaded shank made it much easier to align these in my tooling jig without binding up partway in. Fit perfectly into the pre-tapped 3/8-24 holes, and the consistent hex drive took the guesswork out of tightening.

The black oxide finish on these screws looks professional and seems durable so far. Used them to secure a jig on my drill press, and the partial threading gripped perfectly without stripping. Exactly what I needed for precision work.