Thomson makes great products, right here in the US, and not only is the performance excellence, but the durability is fantastic. The Georgia-based company supplies small parts that allow you to keep your Thomson components fully functional, even 10+ years down the line. The Elite aluminum seatpost is a great example. Thomson offers this replacement Bolt Nut Washer assembly for the Elite and Masterpiece seatpost saddle clamps. These are sold as individual assemblies, so you get one Seatpost Replacement Bolt, Washer and Barrel Nut. If you need two assemblies, order a quantity of two.