7/8-9 x 9 英吋凹頭螺絲 | 平頭 六角凹型驅動 | 合金鋼 熱黑氧化物 (10 入/包)

The hex socket drive on these screws gives a solid, no-slip grip with my Allen wrench. Black oxide finish looks clean and held up well during assembly on a new fixture. Exactly what I needed for precision tooling work.

I’ve used these in a few jig builds and the hex socket drive bites cleanly, no stripping even with a cheater bar. The thermal black oxide coating handles shop grime without rusting, and the 9” length fits my fixture plates perfectly. Solid set of ten for the price.

The black oxide finish on these 7/8-9 x 9" screws really holds up well—I used a few in a jig assembly and they threaded in smoothly without any galling. The hex socket drive made it easy to torque them down with a standard Allen key, even in tight spots.