براغي ذات رأس مقبس 3/8-16 × 1 بوصة | محرك سداسي منخفض الرأس | ملولبة بالكامل | فولاذ سبائكي مع أكسيد أسود حراري (100 / عبوة)

The black oxide finish on these screws gives them a nice, even look that resisted scuffs during my bench work. Fit into my jig holes was snug, and the hex drive grabbed firmly without any stripping on the first few installs.

Swapping out standard hex bolts for these low-profile socket cap screws gave me the clearance I needed on a tight jig assembly—the fully threaded shank grabs securely.

The black oxide finish on these screws looks clean and resists scratching during assembly—perfect for the jig I built. They seated flush with no wobble, and the hex drive held up fine under moderate torque. Exactly what I needed for this tooling project.