METRIC SOCKET CAP SCREWS
Metric socket cap screws also known as Metric Allen Socket cap screws.
Socket cap screws have a small cylindrical head with tall vertical sides. Allen (hex socket) drive is a six-sided recess for use with an allen wrench (hex key).
You can also look for high tensile socket caps and stainless steel socket caps marine grade A4. ideally used for outdoor. These screws also be usefull as screws for motocycle.