براغي رأس كبس بمقبس سداسي 1/2-13 × 1-1/4" | محرك سداسي | رقعة نايلون | كامل الخيط | سبيكة فولاذ معالجة حرارياً أسود (50/عبوة)

I needed a fresh batch for a fixture rebuild and these 1/2-13s drove in cleanly with the hex socket, the nylon patch holding snug without any extra threadlocker. Fifty per pack is solid value when you're burning through a dozen at a time, and the thermal black oxide gave them a uniform, slick look t

The black oxide finish on these screws looks great and seems durable, and the nylon patch held tight during assembly on my fixture. They threaded cleanly into tapped holes without any binding.

The nylon patch on these really locks them in place without needing thread locker—saved me a step on a jig build. They're a solid choice for precision assemblies, and the black oxide finish looks clean.