Products SocketOthers Socket Back Heavy Duty Oarlock Assy 256-03157-00 HEAVY DUTY OARLOCK ASSY ITEM NO. Size 256-03157-00 1/2" 256-03158-00 9/16" 256-03159-00 5/8" You May Also Be Interested In Oarlock Socket Side Mount 256-03273-00 Oarlock Socket 256-03325-00 Flags 256-06028-00 Bimini Thumb Screw 256-03681-00