Triumph 500 650 Alum Billet Valve Cover SET 71-2744 bonneville

 Triumph's part number for these valve cover nuts is 70-4610 or E4610, later superceded to 71-2744/E12744.  They should fit all models of unit 500 or 650 twin until 1970, to my knowledge.  CEI thread, perfectly polished ALUMINUM BILLET, showtime. This listing is for a complete set of four nuts/covers.