HOLO-KROME 32126 براغي ضبط مقبس كوبية 1/4-20 × 7/8 بوصة | سبيكة فولاذ أكسيد أسود حراري (100 / عبوة)

The hex socket drive really helps when you're working in tight spaces where a regular wrench won't fit. These cup point screws have a firm grip and the black oxide finish hasn't shown any rust after a few months in my shop.

These little cup point screws did exactly what I needed for locking a pulley onto a shaft, and the hex socket drive made them super easy to tighten in a tight spot. The black oxide finish looks clean and hasn't shown any rust after a few weeks of use.

Installed a handful of these in a shaft collar last weekend and the hex socket drove in perfectly without stripping. The black oxide finish held up well against a few drops of oil too.