20 PACK Locking Nut Wing Fixing - 20mm x 21mm - Universal Vehicle Fitting Overview: Locking nut, Ø20mm x 21mm, universal. Features: Locking nut, Ø20mm x 21mm, universal. Specification: Further Information: We sell a wide variety of tools & workshop equipment for both the DIY and Professional markets. With well over 10,000 lines of equipment suiting all jobs big or small, our online store has it all. If you can’t quite find what you are looking for, please feel free to contact us and we’ll be more than happy to help. Alias: ys10132