براغي رأس مقبس مقاس 7/16-14 × 1-1/2 بوصة | رأس زرية بمحرك مقبس سداسي | سبائك فولاذية بأكسيد أسود حراري (100/عبوة)

The hex sockets seated perfectly on my driver with zero wobble, and the black oxide finish took a light oil wipe without smudging. Fastened a whole jig fixture together and not a single one stripped or fought me on torque.

I needed a batch of button-head screws for a jig rebuild, and these 7/16-14 x 1-1/2" black oxide ones fit the bill perfectly—the hex socket drive made installation a breeze. The thermal black oxide finish feels durable and looks clean on the machinery.

Putting these together on a new tooling fixture, the hex socket drive made installation a breeze with no stripping. The black oxide finish seems tough and consistent across all 100 pieces. Exactly what I needed for the job.