#5-44 × 1/4" براغي ذات رأس مقبس سداسي | محرك سداسي | ملولبة بالكامل | فولاذ سبائكي مع أكسيد أسود حراري (400 / عبوة)

I needed tiny flat head screws for a precision jig and these fit perfectly—the hex drive gave me great torque control without stripping. The black oxide finish looks clean and professional on the finished assembly.

The black oxide finish on these #5-44 screws is really uniform and clean—they didn't shed any residue when I installed them in a jig. For quarter-inch length, they threaded into tapped holes smoothly with no binding. I've already used a handful and the hex socket drive held up well under moderate to

Ordered these for a small jig I was building and the hex socket drive seated perfectly on my driver, no stripping at all. The thermal black oxide finish looks even and uniform across all 400 pieces, which is a relief for matching hardware on a visible assembly.