براغي رأس مقبس 1-8 × 18 بوصة | محرك مقبس سداسي | خيط جزئي | سبيكة فولاذية أكسيد أسود حراري

I was a little worried these 1-8 x 18" screws wouldn't fit my jig setup, but the partially threaded design makes them perfect for clamping thick plates. The black oxide finish gives them a nice, consistent look and seems to resist scuffs during assembly.

The hex socket drive really helps me get these seated tight in my jig setup without stripping the head. They feel much more robust than the regular zinc screws I was using before.

The black oxide finish on these 1-8 x 18" cap screws looks professional and seems durable; the hex drive seated perfectly with my Allen key. They threaded smoothly into my precision fixture without any binding.