RAM Mounts Rail Mount base model KAK-1003-C is a RAM 1.5" diameter "C" ball and rail clamp capable of being secured to a square rail or post up to 1.77" x 1.77" in size.
This base is constructed of marine-grade anodized aluminum. Included are two stainless steel bolts and two stainless steel nylon-insert locknuts. A 3/16" hex key (Allen wrench) is required to tighten the bolts of this mount.
This rail mount is intended for outdoor use including freshwater and saltwater marine environments.
For more information about the RAM Mounts Rail Mount Base and 1.5-inch Diameter "C" Ball for Square Rail up to 1.77" x 1.77" read Product Details.