Lambretta Stud - M7 Exhaust stud - Screws into barrel | Lambretta Upgrades Pack: Includes 4pcs stud bolts, ideal for replacement or maintenance of multiple bikes. BMW MINI N47 B37 B47 Exhaust B38 Turbo Torx Stud Screw Bolt M7 47mm 2010-19 | UK Durable Construction: Made from steel for corrosion resistance and long-lasting performance. Double-Ended Design: M6×20mm one end and M7×10mm the other, suitable for varied applications. Galvanised exhaust stud M6/M7x30mm for 2- or 4-stroke cylinder. This stud bolt is equipped with two different threaded ends. As a replacement for torn out or... Accurate Dimensions: 30mm overall length ensures proper fit between exhaust manifold and muffler. compatible with exhaust on branded makes such as : funbikes assassin hawkmoto orion upbeat madness plus many many more. ECSiNG 4Pcs M6 To M7 Exhaust Stud Bolts 30mm Length For Length 21mm x 6mm with 15mm physical thread.