8mm x 40mm 內六角圓頭螺絲

Installed these on my lawnmower deck to replace a stripped bolt — the 8mm thread matched perfectly and the black oxide finish hasn't rusted after a few rain exposures.

The hex socket was deep enough to let me torque it down without stripping, and the 40mm length worked perfectly for securing a bracket on my lawn mower deck.

The threads are exactly 8mm, so it fit perfectly into the pre-tapped hole on my equipment. I needed a few extras for future repairs, and these are solid enough to last.