Ruwag Nyloc Nut 12mm (100) is a batch of locking nuts designed to provide secure fastening in automotive and mechanical assemblies. This nut type features a nylon insert that resists loosening caused by vibration and torque. It is commonly used where reliable thread-locking is required to maintain safety and durability.
This listing offers a pack of 100 units of the 12mm size nyloc nut, suitable for repairs or maintenance requiring multiple fasteners. Buyers should compare the thread size and nut dimensions on their existing hardware to ensure compatibility with the 12mm nyloc specification. The nylon insert helps retain the nut’s grip on bolts or studs, making it ideal for engine mounts, suspension components, or machinery prone to vibrations.
When replacing nyloc nuts, it’s important to match the thread pitch along with the diameter for proper fit. This set, identified by SKU BB-406811, is a new part ready to be used where nyloc nuts of this size are called for. Consider the quantity if you need bulk replacements or stock for ongoing work.
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.

