براغي غطاء مقبس 5/16-24 × 1" | محرك سداسي المقبس | حبيبات نايلون | كامل الخيط | سبيكة فولاذ أكسيد أسود حراري (100/عبوة)

The thermal black oxide finish gives these a nice, consistent look that resists fingerprints while I'm working on jigs. The nylon pellet grabs the threads firmly enough that my adjustments stay put once torqued, yet they still back out cleanly when I need to swap parts. For a hundred-count pack, the

The nylon pellet in the threads locked these down perfectly without needing thread locker, saving me time on a jig assembly. Black oxide finish looks clean and uniform across all 100 pieces, no burs or defects in the batch.

Finally, socket cap screws that don't strip out with every adjustment; the black oxide gives them a nice, professional look on my fixture. Was worried about fit, but the threads engage perfectly in the 5/16-24 tapped holes.