Back Up Nut :Anodized Steel, Face Nut : Hex Plastic with Snap On Rubber Cap Inner seal between cylinder lock and contact plate, maximum corrosion protection - eliminates oxidation Marine grade glass-filled Polyester, push to choke, non-conductive housing eliminates potential shorts Hole Size : 7/8", Length : Long: 1 1/8" maximum panel thickness Rated Choke: 7 Amp @ 12v DC, Rated Ignition: 15 Amp @ 12v DC, Rated Solenoid: 30 Amp @ 12v DC Switch Positions: Off - Run - Start Terminal Type: 6 Screw Tab, Type: 3 Position Magneto Fit type: Universal Fit