HOLO-KROME 07032 صواميل ألين 1/4-28 | محرك مقبس 12 نقطة | فولاذ سبائكي بأكسيد أسود حراري (100 / عبوة)

The thermal black oxide coating really holds up well in my shop environment, no rust after several months of use. These 1/4-28 allenuts are a perfect fit for those tight spots where a standard wrench just can’t reach. Exactly what I needed for a tricky assembly project.

Installing these in tight spots was a breeze since you just use a hex key through a 12-point socket. The thermal black oxide finish looks nice and seems durable, and the knurling on the outside keeps them from spinning in the socket.

The knurled body made these easy to grip while tightening in a tight spot, and the black oxide finish looks clean and professional. Only minor gripe is the 12-point socket drive was a bit snug on my hex key at first, but they work great once seated.