Product Color: 12mm Color: Silver Material: nickel plated brass + stainless steel Head shape: head up Head Diameter: 9/16 "(14mm) Mounting hole size: 1/2 "(12mm) Terminal type: 2-pin, solder Type of operation: Momentary 1. 4 pre-wired waterproof locking pushbuttons with IP67 protection: waterproof and rustproof, can be used in humid or dusty environment. 2. Self-locking push button switch mounting hole: 12mm; Nominal current and voltage: 2A / 12V / 24V / 125V / 250VAC. 3. Widely used: Great for horn button switch, PC power switch ect. 4. Pre-wired 12mm self-locking push button type: easy installation and removal. 5. Universal fit all Car SUV truck conversion Van RV Boat Yacht. Ideal for electromagnetic starter, relay, horn button switch, PC power switch or any circuit control.