براغي رأس تجويفي مقاس 5/8-11 × 6-1/2 بوصة | رأس مسطح بمحرك تجويف سداسي | ملولبة جزئيًا | فولاذ سبائكي أكسيد أسود حراري (10/عبوة)

The black oxide finish on these screws is exactly what I wanted for a machine base rebuild—no glare and a nice grippy texture when handling. The 5/8-11 threads cut cleanly into my tapped holes, and the partial threading gave me just the right shank length for clamping. These will definitely be my go

Needed some heavy-duty bolts for a jig I was building, and these alloy steel screws with the thermal black oxide finish handled the torque without stripping. The hex socket drive made installation straightforward with my Allen wrench.

These 5/8-11 bolts fit perfectly into my jig's threaded holes, and the partially threaded shank gave me just the right clamping length. The hex socket drive made installation a breeze with a standard Allen wrench.