براغي رأس كبس بمقبس سداسي 1/4-20 × 6-1/4" | مشقوق جزئيًا | فولاذ سبائكي مؤكسد أسود حراريًا (50 / عبوة)

Used these to rebuild a jig in my shop and the partially threaded design made alignment much easier than fully threaded bolts. The black oxide finish held up fine against the steel dust and coolant splashes.

The black oxide finish feels more durable than the plain steel ones I’ve used before, and the hex socket drive made tightening them in tight spots a breeze. Six and a quarter inches is a perfect length for the machinery guard I bolted together, no wobble at all.

I needed long bolts for a jig I was building, and these partially threaded ones give me just the right grip depth. The hex socket drove in smoothly without stripping, and the black oxide coating looks clean and professional on the assembly.