براغي كاب سوكيت 1-1/4-7 × 9 بوصة | محرك سداسي سوكيت | خيط جزئي | سبيكة فولاذ معالجة حرارياً أسود أكسيد

The black oxide finish looks sharp and held up fine during my setup, though the real win is how cleanly the hex socket drive grabs torque without stripping. Threads ran smooth into my fixture plate, and the partial threading gave just the right grip for the load.

Used these to assemble a heavy-duty jig for my shop press, and the black oxide finish made them slide in without any galling. The partial threading gripped perfectly through the load plate while leaving clearance for the nut.

I was surprised how smoothly the hex socket drive engaged with my torque wrench, made fastening a breeze on a custom jig. The black oxide coating gave them a clean, professional look that resists fingerprints well.