Shaft size : 4mm. shaft size : 4.76mm (3/16"). Material : Bronze. We will try our best to solve the issue. Pitch = 1.4.
PROPELLER 438 Bronze Prop 3/16" or 4mm Shaft 2 Blade 38mm Diameter RC Boat
PROPELLER 436 Bronze prop 1/8" 3.18mm shaft 3 blade 36mm Diameter RC boat 837
PROPELLER 430 Bronze prop 1/8"（3.18mm） shaft 2 blade 30mm Diameter RC boat 75
PROPELLER 443 Bronze prop 4mm shaft 2 blade 44mm Diameter RC boat 829
