براغي رأس مقبس 5/8-11 X 2-1/2" | محرك مقبس سداسي | حبيبة نايلون | ملولبة جزئيًا | سبيكة فولاذية أكسيد أسود حراري (25 / عبوة)

Installed a dozen of these in a jig build yesterday, and the hex socket drive held up great under high torque without stripping. The black oxide finish feels durable and resists scuffing better than the zinc stuff I used before.

The nylon pellet in these screws locks them in place without needing a separate thread locker, which saved me time on a recent jig build. They fit perfectly into my 5/8" tapped holes, and the black oxide finish has held up well against minor scuffs so far.

I needed a batch of high-strength screws for some heavy jig fixtures, and the nylon pellet in these is perfect for keeping them locked in place under vibration. The hex socket drive makes them easy to torque down precisely.