What sort of records do you mean?
Presumably you have (or can get) his birth cert, you say he never married, and you have his death cert. Unless he did anything startling in his life of which a written record remains, Im not sure what else there might be. Other than a Will, too recent for the Probate index online, but worth checking if he left one. Or whether his parents left wills and mentioned him in them- might give you more info about him or might not.