Sea-Dog Lock Cam. Includes two locking arms for flush or offset installations and two matching keys. Keys are random so keyed alike cam locks cannot be guaranteed. Constructed of die cast zinc. Installs with back mounted 304 stainless steel nut. Specifications for Sea-Dog Cam Lock: Manufacturer: Sea-Dog Color: Black Features of Sea-Dog Cam Lock Stamped 304 Stainless Steel/Die Cast Zinc Cam Lock Locking Arm: 1-9/16" to 1-7/8"; Arm Diameter: 1/2" Thread Diameter: 3/4"; Thread Depth: 1" Head Diameter: 15/16" Includes two locking arms for flush or offset installations Package Contents: Sea-Dog Cam Lock Sea-Dog 221930-1: Lock Cam