Lever Arm Heavy Duty - Suits 3/8" Throttle Shaft https://www.efihardware.com/products/2834/Lever-Arm-Heavy-Duty-Suits-38-Throttle-Shaft
10mm wide for extra load carrying and clamping force to shaft holes are tapped to M5.
Shaft Center To M5 Threaded Lever Holes: 34.5, 44.5 & 54.5mm
Overall Length: 73.5mm
Overall Width: 10mm
Suits 3/8" Throttle Shaft diameter.
Available in Black and Natural Anodizing.