M8-1.25 x 160mm 內六角螺絲 | 內六角驅動 | 部分螺紋 | 12.9 級合金鋼熱處理黑氧化物 (50 入/包)

Used a few of these to replace stripped bolts on a milling machine jig. The black oxide finish is a nice touch and the 12.9 grade handles torque without any sign of stress. Exactly what I needed for a snug fit in a tight spot.

Finally got around to mounting some heavy jig fixtures with these M8 socket caps and the 12.9 alloy steel feels seriously tough. The black oxide finish handled a bit of oil without any signs of wear, and the hex drive seated perfectly every time.

I've been using these screws to assemble a jig for my workshop, and the 160mm length was exactly what I needed. The hex socket drive makes installation quick with a standard Allen key.