براغي ذات رأس أسطواني من HOLO-KROME 72364 7/8-9 × 7 بوصة | محرك سداسي | سبيكة فولاذية مؤكسدة حرارياً باللون الأسود (10 / عبوة)

I needed some long fasteners for a custom jig setup and these 7-inch socket cap screws worked perfectly. The hex drive made installation straightforward with no cam-out issues. They feel solid and the black oxide finish seems durable.

The thermal black oxide coating on these screws held up perfectly when I used them for a jig build—no rust or galling after several adjustments. The hex socket drive seated cleanly with my Allen key, making installation straightforward even in tight spots. I’ll definitely order these again for futur

Installed these on a heavy-duty press fixture I’m building and the black oxide finish handled the cutting fluid just fine. The hex drive seated cleanly with no wobble—exactly what I needed for a tight tolerance assembly.