براغي رأس مقبس 7/16-20 X 1/2" | محرك سداسي | ملولبة بالكامل | فولاذ سبيكة أسود حراري (100 / عبوة)

Installed these in a fixture plate and the hex socket drive made tightening them in tight spots much easier. The black oxide finish looks clean and should hold up well in my tooling setup.

Used these for a jig I was building and the hex socket drive grabbed perfectly with my Allen key, no stripping at all. The thermal black oxide coating looks sharp and should hold up well in the shop. Just the right size for getting into tight spots on the fixture.

Had a bit of trouble getting the hex key to seat perfectly in a couple of screws, but once I got them started they held tight in my jig. The black oxide finish looks clean and professional on my tooling setup.