Products SocketOthers Socket Back Heavy Duty Oarlock Assy 256-03159-00 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 Angle Socket 256-03148-00 Oarlock Socket Edge Mount 256-03276-00 Spring Clamps 956-03115-00 SHACKLE KEY 956-09900-00