Washers and Dubo Ring Products

Flat washers

Shakeproof washers

Mudguard washers

Copper grip washers

Terminal cup washers

Crinkle washers

Sealing washers

Belleville washers

Cup washers

Single coil spring washers

"O" rings

Dubo retaining rings

Dubo toothed collar rings

Also available:

Metric Standards:

  • Bright washers for ISO metric fasteners – DIN 125
  • Bright washers for metric fasteners – NF E 27-611
  • Bright washers for metric fasteners – SMS 70
  • Bright washers, large diameter for ISO metric fasteners – BS.4320
  • Bright washers, normal diameter for ISO metric fasteners – BS.4320
  • Bright washers, small diameter, for ISO metric fasteners – DIN 433
  • Bright washers, with o/d 3 x bolt diameter – DIN 9021
  • Conical spring washers for metric fasteners – DIN 6796
  • Conical spring washers for screw assemblies – WS.290
  • Connector washers for terminals – DIN 46 288
  • Copper and aluminium washers for ISO metric fasteners – WS.240
  • Crinkle washers for metric fasteners – BS.4463
  • Expansion plugs, cup type – DIN 443
  • Fibre washers for ISO metric fasteners – WS.200
  • Serrated lockwashers for ISO metric fasteners – DIN 6798
  • Solid sealing washers for metric fasteners – WS.280
  • Spring washers, curved (one wave) for ISO metric fasteners – WS.300
  • Spring washers, curved or crinkled for metric fasteners – DIN 137
  • Spring washers, double coil rectangular section – BS. 4464
  • Spring washers, single coil rectangular section – DIN 127
  • Spring washers, single coil rectangular section metric series – BS. 4464
  • Spring washers, single coil square section – DIN 7980
  • Spring washers, single coil square section – NF E 27-622
  • Spring washers, single coil square section metric series – BS. 4464
  • Spring washers, three wave for ISO metric fasteners – WS.320
  • Spring washers, two wave for ISO metric fasteners – WS.310
  • Toothed lockwashers for ISO metric fasteners – DIN 6797
Imperial Standards:

  • Bright steel washers, additional selected sizes for BSW, BSF, UNC and UNF fasteners – WS.040
  • Copper grip, shell or claw washers – WS.084
  • Copper, aluminium and phosphor bronze washers for BSW, BSF, UNC and UNF fasteners – WS. 086
  • Crinkle washers for BA, BSW, BSF, UNC, UNF and American number size fasteners – BS.3401
  • Cup washers ‘C’ countersunk type for woodscrews – WS.016
  • Cup washers ‘R’ raised type for woodscrews – WS.011
  • Engine expansion or welch plugs – WS.061
  • External countersunk toothed lockwashers – Type 15
  • External toothed lockwashers for imperial fasteners – Type 11
  • Fibre washers for BSW, BSF and BSP threads – WS.010
  • Internal toothed lockwashers for imperial fasteners – Type 12
  • Large bright washers for automobile use, for BSW, BSF, UNC and UNF fasteners – BS.3410
  • Large bright washers for BA and American number size fasteners – BS.3410
  • Large bright washers, full Whitworth for BSW, BSF, UNC and UNF fasteners – BS.3410
  • Medium bright washers for automobile use, for BSW, BSF, UNC and UNF fasteners – BS.3410
  • Plain washers, American Standard, additional selected sizes – ASA B 27-2
  • Plain washers, American Standard, preferred sizes – ASA B 27-2
  • Small bright washers for BA and American number size fasteners – BS.3410
  • Small bright washers for BA fasteners, manufacturers standard – WS.032
  • Small bright washers for BSW, BSF, UNC and UNF fasteners – BS.3410
  • Solid copper, aluminium and fibre sealing washers – WS.082
  • Spring washers, double coil – BS.1802 Type D
  • Spring washers, heavy series (superseding ASA B27.1-1965 heavy series) – ANSI B18.21.1
  • Spring washers, regular series (superseding ASA B27.1-1965 medium series) -ANSI B18.21.1
  • Spring washers, single coil, rectangular section – BS.1802 Type B
  • Spring washers, single coil, square section – BS.1802 Type A
  • Stainless steel washers for BA, BSW, BSF, UNC and UNF fasteners – WS.071
  • Terminal cup washers – WS.089
  • Wide flange washers for BSW, BSF, UNC and UNF fasteners – WS. 057

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