This is a universal tail support mount for a 40mm motor. There are screw head notches to allow clearance around the perimeter for easy of installation and removal. These come as pictured with 6-32 stainless hardware. A universal aluminum epoxy ready plate is included and will need to be trimmed for individual needs. The plates can be trimmed with a dremel/hacksaw/bandsaw, etc.
All made from 6061 billet aluminum, made in the USA.