Ruwag Nyloc Nut 4mm (10) is a set of locking nuts designed to maintain secure fastening in automotive assemblies where vibration or motion may cause standard nuts to loosen. These 4mm Nyloc nuts include nylon inserts that create friction against the bolt thread, helping to keep components firmly in place.
This listing offers a pack of ten nuts, suitable for use in various applications where a reliable locking nut of this size is specified. The buyer should compare the thread size and pitch on their existing nuts to ensure compatibility. This part is a new item identified as a Ruwag brand Nyloc nut, model 4mm, with SKU BB-407021.
When selecting Nyloc nuts, it is important to match the 4mm size exactly to your vehicle or equipment requirements. These nuts typically secure fasteners on components that may experience vibration or stress, preventing loosening and potential mechanical issues.
- Contains 10 pieces of 4mm Nyloc nuts
- New condition, ready for replacement use
- Confirm thread size and type before purchase to ensure fitment
For enquiries about compatibility or alternative parts, consider contacting the sales support or submitting a request for part assistance to find the best match for your needs.
Need help matching this item to your vehicle? Use Vehicle Parts Finder, Request a Part or Platinum Sales Desk with your VIN, engine number, part number or clear photos.

