Cole Hersee 24106 12V Grounded Continuous Duty SPST Solenoid Housing, plated steel case Studs, copper 5/16-Inch -24 thread, hex nuts and lock washers included Coil, ignition and ground terminals, Steel 10-32 thread, hex nuts and lock washers included Bracket mounting holes 5/16-Inch x 19/32-Inch (7.9 x 15.1) on 2 13/64-Inch centers (56.0mm) 85A Normally open contacts, SPST, one circuit, Off - On