General description Butterfly Wing Nuts are designed for easy fastening and tightening, allowing for quick adjustments without the need for tools. They are particularly popular in the marine industry due to their robust construction from 316 Grade Stainless Steel, which provides excellent rust protection. Technical specifications Internal Thread Diameter: 10MM Width: 240MM Metal: 316 Grade Stainless Steel Product Codes and Dimensions: Code SFSSTN10: A=39MM, B=240MM, C=30MM, D=10MM, E=75MM Code SFSSTN12: A=39MM, B=240MM, C=30MM, D=12MM, E=75MM Code SFSSTN16: A=39MM, B=240MM, C=30MM, D=16MM, E=70MM Code SFSSTN20: A=39MM, B=240MM, C=29MM, D=20MM, E=70MM Code SFSSTN24: A=39MM, B=240MM, C=30MM, D=24MM, E=75MM Usage Wing Nuts are ideal for applications where frequent adjustments are necessary, allowing for quick and easy turning without tools.