ITEM NAME:16mm 1NO High Head Metal Waterproof Momentary Push Button Switch AC 250V/3A Description: - Momentary switch: Push--ON; Release--OFF - Great for Cars, electromagnetic starter, relay, Horn Button Switch, PC Power Switch or any circuit controls - Mounting Hole Size: 16mm Diameter; Switch Combination: 1NO - IP67, IK08 protection can be used in wet or dusty enviroment - Aluminium Oxide surface, strong and durable, waterproof. Specification: - Mounting Hole Size: 16mm Diameter - Switch Rating: 3A/250V AC 5A/250V AC - Switch Combination: 1NO - Operation Types: Momentary switch: Push--ON; Release--OFF - Working Temperature: -20 ~ 50℃ - Protection Level: IP67, IK08 - Shell Material: Nickel Plated Brass + Stainless Steel - Button Part Diameter: 1.1cm - Hexagon Diameter: 2cm - Total Length: 2.2cm - 2 Pin Length: 0.5cm Package Included: 1 Piece Momentary Push Button Switch Note: Color maybe slightly different due to different monitor. The above size is measured by hand, please allow slightly difference. Thanks !.Switch Combination: 1NO. - Aluminium Oxide surface, strong and durable, waterproof. - Shell Material: Nickel Plated Brass + Stainless Steel. - 2 Pin Length: 0.5cm.