براغي رأس مقبس HOLO-KROME 73022 #6-40 X 1/2" | محرك مقبس سداسي | فولاد سبائكي أكسيد أسود حراري (100 / عبوة)

The hex drive bites clean without stripping, even on a couple of slightly worn Allen keys. They’re solid 100-packs for jigs and fixtures, though the black oxide finish seems more matte than glossy—fine for shop use.

The thermal black oxide finish is exactly what I needed for a precision assembly area where rust was a constant headache. These #6-40 screws drove in cleanly with a hex key and held tight without stripping. The 100-count box is plenty for my current project.

Used these for a jig I was building and the hex socket drive made installation quick without stripping. The alloy steel feels sturdy and the black oxide finish is holding up well so far. Exactly what I needed for precision assembly work.