براغي رأس مقبس مقاس 3/8-24 × 1-1/4" | محرك مقبس سداسي | رقعة نايلون | خيط كامل | سبائك فولاذية بأكسيد أسود حراري (100 / عبوة)

The nylon patch locks them in place perfectly on my jig build, so no more worrying about vibration loosening. The black oxide finish gives them a nice, uniform look that matches my machine's other hardware too.

Used these on a precision indexing fixture I'm building, and the nylon patch really holds them in place under vibration—no need for thread locker. The black oxide finish also looks sharp against the aluminum plates, and all 100 came clean and burr-free.

Fit perfectly on my jig fixture and the thermal black oxide finish looks great against the machined surfaces. The nylon patch holds them snug so I don't worry about them backing out during vibration, which is exactly what I needed.