براغي رأس أسطواني M24-3 × 80 مم | رأس مسطح محرك سداسي | ملولبة بالكامل | سبيكة فولاذية فئة 10.9 مؤكسدة حرارياً سوداء (10/عبوة)

The hex socket seated perfectly on my driver without any wobble, and the thermal black oxide finish looks uniform across all ten pieces. Threads ran smooth through my steel fixture plate, no binding or grit.

Used these for a jig I’ve been building, and the 10.9 alloy steel feels seriously solid—no flex or stripping even under heavy torque. The fully threaded length made alignment easy, and the black oxide coat hasn’t shown a hint of wear after a week of shop use.

The thermal black oxide finish on these screws held up perfectly during a heavy fixture build, with no chips or scratches after multiple torque adjustments. They seated flush in a jig plate I was drilling, and the hex socket drive gave me solid bite without cam-out. Exactly the quality I needed for