lever arm - standard https://www.efihardware.com/products/55/lever-arm-standard
Simple and effective linkage.
Includes shaft lock grub screw and pin hole for throttle stop spring return spring.
Shaft Center To M5 Threaded Lever Holes: 37mm. (M5 threaded hole also suits 10/32UNF)
Overall Length: 50.3mm
Overall Width: 8.3mm
Suits 8mm & 5/16" shaft diameter.
Available in Blue, Black and Natural Anodizing.