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China Wave Single Spring Lock Washer Manufacturer, Supplier, Factory

When seeking reliable locking mechanisms for bolted connections, a Coil Spring Lock Washer is a common choice, but for applications demanding a lower spring rate and more uniform pressure distribution, the Wave Single Lock Washer offers a superior solution. Unlike a standard Coil Spring Washer, the wave design provides consistent tension across a wider surface area, effectively preventing loosening from vibration and thermal cycling. This makes the Wave Single Spring Washer an indispensable component in assemblies where maintaining precise clamp load is critical for safety and performance.


The Wave Single Spring Lock Washer is engineered from high-carbon steel or 304/316 stainless steel, ensuring excellent resilience and corrosion resistance. Its unique wave form, typically featuring three to six crests, acts as a robust spring that compensates for material relaxation and settlement in the joint. This design maintains a constant force on the fastener, which is vital for the long-term integrity of the assembly. The Wave Single Spring Lock Washer is particularly effective in applications involving soft materials or painted surfaces, as it distributes the load more evenly than helical spring washers, minimizing surface damage and embedment.

Key Specifications of the Wave Single Spring Lock Washer

  • Material: High-Carbon Steel, 304 Stainless Steel, 316 Stainless Steel
  • Standards: Compliant with DIN 137, ANSI B18.21.1
  • Finishes: Plain, Zinc Plated, Galvanized, Passivated
  • Operating Temperature Range: -20°F to +450°F (-29°C to +232°C) depending on material
  • Primary Function: Vibration resistance, spring tension maintenance, load distribution

Detailed Technical Parameters

Nominal Size (Inch) Inside Diameter (mm) Outside Diameter (mm) Thickness (mm) Approx. Load (N)
#4 3.20 7.50 0.80 120
#6 3.70 8.70 0.90 180
#8 4.60 10.50 1.00 250
#10 5.20 11.80 1.20 320
1/4" 6.60 13.10 1.40 450
5/16" 8.40 16.70 1.80 680
3/8" 10.00 20.00 2.20 950

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