This mounting block is made specifically for a Polar Kraft brand of boat. This kit includes a block and back plate to mount on the track, a flat mounting block (3/8" or 1/2" select below), two stainless steel 1"x1/4"x20 screws, and two 1 1/4"x1/4"x20 screws. The longer screws are made to attach the flat mount to track block, and the shorter screws to attach the whole system to the back plate. (refer to pictures)
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