C.E. Smith 536810C - Flush Mount Rod Holder - 15 Degree - Cast - 10.5" Deep [536810C]536810C Flush Mount Rod Holder 15 Degree Cast 10. 5" Deep The larger 80C 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