Fastronix Black Thru Panel Battery Terminal Connector Conveniently Mounts in any 7/16" or Thinner Panel with a 1-1/4" Hole Has 2 - 3/8"-16 Brass Stud Terminals that are 5/8" Long Can be Used for Negative Battery Connection Includes Pictured Hardware Use with Fastronix 404-111 for a Professional Installation