C.E. Smith 536810S - Flush Mount Rod Holder - 15 Degree - Swivel - 10.5" Deep [536810S]536810S Flush Mount Rod Holder 15 Degree Swivel 10. 5" Deep The larger 80 series models feature a beautifully rounded cast bottom end with a 1 2" Pipe Threaded Drain Hole. Use them when the bottom of the rod holder must have a decorative appearance. They feature a super tough cast stainless steel gimbal bar designed to hold up to the punishment of downriggers or heavy tackle. A Black vinyl liner protects rods and is keyed with the gimbal so the liner