POLLAK Continuous Duty Starter Solenoid Switch, 85 Amps, 4 Terminal. 6-24 VDC Systems. Plated Steel or Phenolic Housings. Ignition and Ground Terminals, No10-32 Thread. Contact Terminals 5/16 inch- 24 Thread. Bracket Mounting Holes; 5/16 inch x 19/32 inch, 2-1/8 inch on centers. Complete Mounting Hardware. In-rush current 150 amp.