HOLO-KROME 720000366 #5-40 X 7/8" براغي رأس مقبس | محرك سداسي داخلي | فولاذ سبائكي أكسيد أسود حراري (25 / Pkg.)

Installed these in a jig I'm building and the socket drive grabbed perfectly with a standard hex key. The 7/8" length was exactly what I needed for that assembly depth.

These little screws bit perfectly into the threads on my milling jig, and the black oxide finish looks clean and professional. They came neatly packed and the hex drive held the Allen key without any slipping.

I was replacing some worn fasteners on a jig I use daily, and the #5-40 size fit perfectly in the tight spots. The hex socket drive let me get good torque without stripping, and the black oxide coating seems durable so far.