4-position universal Start Switch, suitable for marine environments. Moisture-repellent insulator and coded lock with two keys. Acc-Off-Ign/Acc-Ign/Start, spring return to Ign/Acc. Key removable at Off position. 10A Accessory, 5A Ignition and 5A Start at 12V DC. Four brass screw terminals, Brass case and mounting hardware. Chrome-plated brass facefut.Brass mounting stem 13/16" - 24, 1 7/32" (31.0mm)long. fits panels up to 1" thick (25.4mm).