Continuous Duty Solenoid - 12VMinimizes arcing and contact oxidation, maintains highp erformance. Universal use with part numbers available to handle loads up to 200A.PVC Coated option available for a more environmentally sealed product. Coated solenoids withstand moisture and dust to IP66.Mechanical Specifications:SPST Normally open contactsPlated steel housing. Hexnuts and washers includedLarge (power circuit) battery studs; copper5/16" -24 threadSmall (control circuit) coil studs; steel 10-32 threadBracket mounting holes 5/16 X 19/32" (7.9 X 15.1mm) on2 13/64" centers (56.0mm)Available with PVC coated exterior or Potted Coil interiorsfor harsh environments or vibration resistanceCaution: Never unscrew the inner hexnuts on the studsThese keep the stud and inner wiring in place