Constructed of corrosion resistant glass reinforced polyester housing with an elastomeric rubber internal gasket and ultrasonic welding for increased water resistance. Compact behind-dash panel dimensions allow for mounting in confined spaces. 2 Boss copper alloy screw terminal contacts. Overall length: 2-7/8?. Mounting stem: 1-7/16L x 5/8"-32 thread. Maximum panel thickness: 1-1/8". 30A @ 12VDC. Includes rubber boot nut. Positions Mom On/Off Terminals 2 Boss A 5/8" Panel 1-1/8" Max