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Zinc Plating Toothed Lock Washer Types A DIN6797 65Mn With External Teeth

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Zinc Plating Toothed Lock Washer Types A DIN6797 65Mn With External Teeth

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Product Details

DIN6797(A) 65Mn Zinc Plating Toothed Lock Washers—Type A,With External Teeth Φ6-Φ10

DIN 6797(A) defines the standard for Type A toothed lock washers with external teeth. The key features, advantages, and applications of this type of washer are as follows:

Features

  1. External Teeth Design: The washer features a series of raised teeth around its perimeter, which can embed into the softer material of the substrate or adjacent components during installation, providing an additional locking effect.
  2. High Strength: These washers are typically made from high-strength materials, such as stainless steel or carbon steel, ensuring they maintain their locking function under vibration or impact.
  3. Anti-loosening Performance: The external teeth of the DIN 6797(A) washer effectively prevent bolts or nuts from loosening under vibration or dynamic loads.

Advantages

  1. Enhanced Safety: In applications requiring high reliability, such as heavy machinery, bridges, and buildings, this washer significantly reduces safety hazards caused by loose bolts or nuts.
  2. Reduced Maintenance Costs: As it reduces the need for frequent inspections and re-tightening due to loosening, it can lower the maintenance costs of equipment.
  3. Strong Adaptability: This washer is compatible with various types of bolts and nuts, and it can be used with multiple materials, such as steel, aluminum, and plastic.

Applications

  1. Heavy Machinery and Equipment: In environments that require withstanding high vibration and impact loads, such as excavators, cranes, and compressors, the DIN 6797(A) washer provides reliable locking.
  2. Bridges and Building Structures: In bridges, buildings, and other structures that need to endure natural forces like wind and earthquakes, this washer ensures the tightness of bolts or nuts, enhancing the structural safety.
  3. Vehicles: In automobiles, trains, aircraft, and other modes of transportation, the DIN 6797(A) washer is widely used for securing critical components to prevent loosening during operation.

 

DIN6797(A)

Size 1.7 2.2 2.7 3.2 3.7 4.3 5.3
d min=nominal size 1.7 2.2 2.7 3.2 3.7 4.3 5.3
max 1.84 2.34 2.84 3.38 3.88 4.48 5.48
dc max=nominal size 3.6 4.5 5.5 6 7 8 10
min 3.3 4.2 5.2 5.7 6.64 7.64 9.64
t 0.3 0.3 0.4 0.4 0.5 0.5 0.6
Number of Teeth 6 6 6 6 6 8 8
per 1000 units≈kg 0.01 0.025 0.04 0.045 0.075 0.095 0.18
For Nominal Thread Diameter M1.6 M2 M2.5 M3 M3.5 M4 M5
Size 6.4 7.4 8.4 10.5 13 15 17
d min=nominal size 6.4 7.4 8.4 10.5 13 15 17
max 6.62 7.62 8.62 10.77 13.27 15.27 17.27
dc max=nominal size 11 12.5 15 18 20.5 24 26
min 10.57 12.07 14.57 17.57 19.98 23.48 25.48
t 0.7 0.8 0.8 0.9 1 1 1.2
Number of Teeth 8 8 8 9 10 10 12
per 1000 units≈kg 0.22 0.3 0.45 0.8 1 1.6 2
For Nominal Thread Diameter M6 M7 M8 M10 M12 M14 M16
Size 19 21 23 25 28 31  
d min=nominal size 19 21 23 25 28 31  
max 19.33 21.33 23.33 25.33 28.33 31.39  
dc max=nominal size 30 33 36 38 44 48  
min 29.48 32.38 35.38 37.38 43.38 47.38  
t 1.4 1.4 1.5 1.5 1.6 1.6  
Number of Teeth 12 12 14 14 14 14  
per 1000 units≈kg 3.5 3.8 5 6 8 9  
For Nominal Thread Diameter M18 M20 M22 M24 M27 M30  
               

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