M20 Nut Lock Washer for 20mm Bolts, Nut Locking, Wedge Locking Washer

M20 Nut Lock Washer – Wedge Locking Washer for Bolts & Nuts

Heavy-Duty Locking Washer for Maximum Vibration Resistance

The Nut Lock Washer is a high-strength, two-piece wedge locking system engineered to keep fasteners secure under extreme vibration, dynamic loads, and thermal expansion. Designed for use with M20 bolts and nuts, it features interlocking serrated cam faces that create a powerful wedge effect—preventing fastener loosening and maintaining preload over time.

Manufactured from hardened spring steel and finished with a zinc plating, this washer delivers exceptional locking performance, mechanical strength, and corrosion protection, even in harsh industrial and outdoor environments.

Key Features:

• Wedge Locking Technology: Cam faces interlock and create a mechanical wedge that actively resists rotation and loosening due to vibration or dynamic loads.
• High-Security Grip: Outer faces bite into both the bolt/nut head and the mating surface, locking the joint in place.
• Premium Material: Built from hardened spring steel for high tensile strength and long-term durability.
• Corrosion Resistant: Zinc plated finish provides lasting protection against rust and environmental exposure.
• Reusable & Reliable: Maintains full locking function through multiple installations without degradation.
• No Special Tools Needed: Installs quickly with standard torque tools—no adhesives or threadlockers required.

Specifications:

• Inner Diameter: 21.0 mm (for clearance with M20 fasteners)
• Outer Diameter: Approx. 34–38 mm
• Combined Thickness: ~4.0–4.5 mm
• Material: Hardened Spring Steel
• Finish: Zinc Plated

Applications:

• Heavy machinery and construction equipment
• Structural steel and bridge assemblies
• Mining, marine, and offshore installations
• Wind turbines and energy infrastructure
• Rail, aerospace, and transportation systems
• Any bolted connection exposed to shock, vibration, or movement

Engineered for performance where it matters most, the M20 Nut Lock Washer ensures secure fastening in the toughest environments—delivering peace of mind and long-term reliability.