براغي رأس كبس بمقبس سداسي | 3/8-24 X 4-3/4" | ملولبة جزئياً | فولاذ سبائكي مع أكسيد أسود حراري (50 / عبوة)

I needed some longer bolts for a jig I was building and these fit the bill perfectly; the black oxide coating is a nice touch, giving them a professional look. They threaded in smoothly with no binding or galling.

Installed these in a tooling fixture and the 4-3/4" length was exactly what I needed to reach through a thick bracket. The black oxide finish looks consistent across all 50 screws and seems like it will resist rust well.

The partial threading made a huge difference when securing a fixture in my milling machine—no more fighting with full threads. The black oxide coating gives a nice, consistent finish that matches my other tooling hardware perfectly.