HOLO-KROME 77548 براغي كاب سوكيت 1/2-20 × 5 بوصة | محرك سوكيت سداسي | سبيكة فولاذ معالجة حرارياً أسود (25 / عبوة)

Needed these for a fixture rebuild and the 1/2-20 threads cut clean without any binding. The hex socket drive made installation straightforward even in tight spots.

The black oxide finish is holding up perfectly on my tooling fixtures, no rust even after a month of cutting fluid exposure. Threads seated cleanly into my tapped holes with zero binding, and the socket drive grabbed tight without stripping.

I've been using these for a jig setup, and the black oxide finish holds up well against minor chips and coolant splash. The hex drive seated perfectly without any wobble, nice change from cheaper screws that strip out.