johnny,just looking at your CSB lathe mine arrived mond its same as yours when you say getting new lock doesn,t even fit hole- looking at yours/mine the locks are identical mine doesnt fit hole either same too long bolts if you read up on these lathes say especially model C say they often used off shelve parts off other lathes that they had too many of as it was the cheaper lathe of the family so l guess its the original lock just put on as they had loads of them and wanted rid-one cut