M10-1.5 X 80mm 內六角螺絲 | 平頭內六角驅動 | 部分螺紋 | Class 10.9 合金鋼熱處理黑氧化 (50 顆/包)

I bought these for a jig I’m building, and the partially threaded design makes alignment much easier than fully threaded screws. The hex socket drive is solid, and the 10.9 rating gives me confidence in heavy use.

The black oxide finish on these M10-1.5 screws feels durable and hasn't chipped during my jig assembly. The hex socket drive seated firmly in my driver without stripping, which I've had trouble with on cheaper bolts.

Threaded right up to the head, which made seating them in my jig plates a breeze; the 80mm length was spot on for the 10mm plate stack I was clamping. Class 10.9 strength gives me real confidence these won't shear under load, and the black oxide finish just looks clean.