🔒 Wedge Lock Washer – High Vibration & Preload Securing Washer | Neo Fasteners
Neo Fasteners supplies premium-grade Wedge Lock Washers, also known as Anti-Vibration Lock Washers, engineered for maximum bolt security in dynamic environments. These washers are built with a pair of lock washers featuring cam faces on the inner side and radial teeth on the outer face. As the bolt or nut tries to loosen due to vibration or shock, the cam angle creates a wedge effect that increases clamping force, thereby preventing unintentional loosening.
Wedge lock washers are used in critical applications where bolt integrity is essential, such as wind turbines, railway systems, heavy machinery, power plants, off-road vehicles, structural steel, oil & gas pipelines, and marine engineering.
🔧 Key Features
- Dual Washer Design: Two washers with cams on one side and radial teeth on the other
- Self-Locking Effect: Increases clamping force when bolt tries to rotate loose
- Reusable: No loss of function even after repeated use
- Works with Dynamic Loads & Vibrations
- High Safety and Reliability in Critical Joints
📐 Technical Specifications
- Size Range: M3 to M42 (Metric) | #4 to 1-3/4" (Inch)
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Washer Types:
- Standard Wedge Lock Washer (2-piece set)
- Enlarged OD Wedge Lock Washer (for slotted/oversized holes)
- Single Piece for automated assembly (on request)
- Cam Angle: Greater than bolt thread pitch angle
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Standards:
- DIN 25201
- ISO 898-2 (Fastener compatibility)
- Equivalent to Nord-Lock® type systems
🧱 Material Options
- Carbon Steel – Hardened & Tempered
- Stainless Steel – SS 304 / SS 316 / SS 254 SMO (for corrosion resistance)
- Spring Steel
- Inconel / Duplex / Super Duplex / Alloy Steel (on request)
🎨 Finish Options
- Zinc Plated (White/Yellow) – Standard protection
- Dacromet / Geomet Coated – High corrosion & chemical resistance
- Phosphate Coated – Low-friction assembly
- Passivated (Stainless Steel)
- Self-Color (Plain) – For heat treatment or custom finish
⚙️ Applications
- Wind turbines & solar panel mounts
- Railway brake systems & rail track joints
- Heavy vehicles & earthmoving machinery
- Oil & gas flanged connections
- Marine propulsion systems
- Mining, construction & military equipment
- Structural steel & critical bolted assemblies
- Power plants, transformers, and pressure vessels
✅ Advantages Over Conventional Washers
- No need for chemical adhesives (like Loctite)
- Maintains preload under severe vibration & thermal cycling
- Can be disassembled and reused multiple times
- Prevents fatigue-related joint failure
- Works with standard bolts/nuts and tools
📦 Packaging & Delivery
- Supplied in pairs (2-piece washer set)
- Available in zip-lock bags, cartons, or branded OEM boxes
- ISO 9001:2015 certified & RoHS compliant
- Material Test Certificates (MTC) available
- Standard sizes in ready stock
- Custom sizes and laser marking available
- Delivery across India & export-ready packaging
📞 Contact Us
📧 Email: neofasteners@yahoo.com
📞 Call/WhatsApp: +91-96328 07665
🌐 Website:
🔗 neofasteners.com (Google Site)
📍 Location: Bengaluru, Karnataka, India