Catalog > Internet of Things (IOT) Related Products > More Platforms Catalog > Consumer Electronics > Kits > Smart Kits 30mm Copper Hex Shaft Coupling 30mm Copper Hex Shaft Coupling HKD HEX SHAFT COUPLING 30MMX3MM 3MM ID DC GEAR MOTOR SHAFT COUPLING TO WHEEL. LENGTH=30MM 26.77 ZAR inc for 1 Each 5 in Stock Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Specifications Material: Brass Hole diameter: 3 mm Total length: 30mm Size: 12 mm edge to edge The side of the screw aperture: 4mm Screws