#8-32 × 5/8" براغي ذات رأس مقبس | محرك سداسي مسطح الرأس | حبيبات نايلون | كامل الخيوط | فولاذ سبائكي أسود حراري (100 / عبوة)

Used six of these in a fixture plate I'm building, and the black oxide finish on the threads let them seat smoothly without any galling. The hex socket drive bites crisply with a standard Allen key, and the nylon pellet holds its position tight after a few hours of vibration.

The nylon pellet inside these screws is a lifesaver—they hold firm under vibration, unlike plain ones I've used before. The black oxide finish looks clean and hasn't chipped, even after a few days in my shop.

Installed these in a jig I'm building and the nylon pellet locks them in place perfectly without any thread locker. The hex socket drive makes driving them into tight spots much easier than I expected.