This fishing rod holder backing plate is solid 1/8" thick 304 stainless steel. It evenly distributes the stress of the mounting screws under the mounting surface for a much more solid installation. The elongated hole pattern fits all of our rod holders #PRE55501, #PRE55503, #PRE55505, #PRE55502 PANGA. Mounting slots allow flexibility so it fits many other rod holders.
Dimensions: A = Overall width - 3-5/8" B = Overall length - 3-1/2"" C = Inside width - 2-1/16" D = Material thickness - 1/8" Distance between holes as shown Holes are approximately 1/2" x 5/16" to allow for flexibility.