No, if the lug is threaded then it doesn't need a nut. And, you need a bolt with an Allen head to fit the hole on the right side. Like SS, I had a frame (Mal Rees) with 'fastback' seat cluster and a threaded lug.
@yoav started
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No, if the lug is threaded then it doesn't need a nut. And, you need a bolt with an Allen head to fit the hole on the right side. Like SS, I had a frame (Mal Rees) with 'fastback' seat cluster and a threaded lug.