M8-1.25 x 70mm 內六角螺絲 | 內六角驅動 | 部分螺紋 | 12.9級 合金鋼 鍍鋅 (100顆/包)

They seat perfectly in the hex socket without any wobble, and the zinc plating looks clean and even across all 100 pieces. Used them to bolt down a steel table frame and the 12.9 alloy steel held up to a torque wrench without stripping. Exactly what I needed for the precision assembly work I do.

Installed these on a custom jig build and the hex socket drive seated perfectly with no slippage. The zinc plating looks clean and the 12.9 grade gives me confidence they'll hold up under heavy use.

Finally, a socket cap screw that doesn’t strip when you’re torquing it down—the hex drive bites cleanly every time, and the 70mm length was perfect for my assembly. The zinc plating’s held up well so far, no rust after a few weeks in a damp shop. Slightly pricier than generic bolts, but the Class 12