Plain Washers

What is it?

A plain washer, also known as a flat washer is a thin ring of material with a hole in the centre and is an essential part of any fastener assembly. These washers help prevent wear and distortion of installation surfaces over time whilst reducing heat and friction during the tightening process.

What does it do?

A plain washer is used with a threaded fastener such as a screw or bolt. Washers are primarily used for the following;

  • Distributing the load of a threaded fastener for example, screw or nut
  • Preventing damage to the surface it is being fixed to during tightening
  • Provides a smooth surface for the nut or bolt to bear on to
  • Reduce vibration
  • Spacer

Applications

Plain washers are utilised whenever a fastener such as a nut or bolt is used. Some of the more common applications would be;

  • Furniture assembly
  • White goods, for example, washing machines
  • Unistrut and support rail systems
  • Steel structures
  • Bridges

Types

Flat washers are available in different materials, finishes and thicknesses from 0.3 mm to 5 mm. Washers are also available with various inside diameters (1.5 mm to 22 mm) and outside diameters (3 mm to 60 mm). Depending on application and environment, there are specific attributes that must be considered when selecting the correct component. For example stainless steel offers good corrosion resistance making it suitable for outdoor applications.

Material

  • Brass Washers
  • Ceramic Washers
  • Steel Washers
  • Stainless Steel Washers (A2 304 and A4 316 grades)

Finish

  • Bright zinc plated
  • Nickel plated
  • Zinc Plated
  • Chrome Plated

...
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Description Price For Screw/Bolt Size Material Inside Diameter Outside Diameter Stainless Steel Type Thickness Finish
RS Stock No. 2508831329
Mfr. Part No.3117
BrandKeystone
£2.59
1 Pack of 100
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RS Stock No. 2508838279
Mfr. Part No.3358
BrandKeystone
£3.40
1 Pack of 100
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RS Stock No. 2508830102
Mfr. Part No.3114
BrandKeystone
£5.02
1 Pack of 100
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RS Stock No. 2508834334
Mfr. Part No.3365
BrandKeystone
£5.57
1 Pack of 100
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RS Stock No. 2508834261
Mfr. Part No.3212
BrandKeystone
£4.35
1 Pack of 100
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RS Stock No. 2508833498
Mfr. Part No.3145
BrandKeystone
£4.36
1 Pack of 100
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RS Stock No. 2508833505
Mfr. Part No.3354
BrandKeystone
£4.73
1 Pack of 100
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RS Stock No. 2508831363
Mfr. Part No.3348
BrandKeystone
£2.16
1 Pack of 100
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RS Stock No. 2509280205
Mfr. Part No.3349
BrandKeystone
£2.82
1 Pack of 100
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RS Stock No. 2508833561
Mfr. Part No.3151
BrandKeystone
£4.39
1 Pack of 100
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RS Stock No. 2508834198
Mfr. Part No.3363
BrandKeystone
£4.35
1 Pack of 100
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RS Stock No. 2508833432
Mfr. Part No.3139
BrandKeystone
£5.05
1 Pack of 100
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RS Stock No. 2508834097
Mfr. Part No.3198
BrandKeystone
£4.59
1 Pack of 100
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RS Stock No. 2508834283
Mfr. Part No.3214
BrandKeystone
£5.67
1 Pack of 100
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RS Stock No. 2508834148
Mfr. Part No.3360
BrandKeystone
£3.40
1 Pack of 100
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RS Stock No. 2508830534
Mfr. Part No.3347
BrandKeystone
£2.59
1 Pack of 100
Pack(s)
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