براغي ذات رأس مقبس سداسي #10-32 × 7-1/2 بوصة | محرك مقبس سداسي | خيط جزئي | فولاد سبائكي مؤكسد أسود حراري (100/عبوة)

The partially threaded length is spot-on for my precision assembly work, and the thermal black oxide finish feels tough and slick in the hex socket. I’ve torqued a few down hard and not a single one stripped—good value for a hundred-piece lot.

The partially threaded section grabbed exactly where I needed it for a jig build, and the black oxide finish held up without a speck of rust after a week in the shop. These #10-32s are the first pack I’ve bought that didn’t need any chasing to fit cleanly into a tapped hole.

The hex drive gave me a solid bite without any cam-out, even when torquing these into a steel jig. Fit perfectly into the 7-1/2" length I needed for a tight assembly.