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.
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
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. Depending on application and environment, there are specific attributes that must be considered when selecting the correct component.
Material
• Brass
• Ceramic
• Steel
• Stainless Steel (304 and 316 grades)
Finish
• Bright zinc plated

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Description Price For Screw/Bolt Size Material Inside Diameter Outside Diameter Stainless Steel Type Thickness Finish
RS Stock No. 525-947
BrandRS PRO
TWD146.00
1 Bag of 250
Bag(s)
M6 Steel 6.4mm 12.5mm - 1.6mm Bright Zinc Plated
RS Stock No. 530-797
BrandRS PRO
TWD182.00
1 Bag of 100
Bag(s)
M8 (Form B) Stainless Steel 8.4mm 17mm A2 304 1mm Plain
RS Stock No. 797-6361
BrandRS PRO
TWD682.00
1 Bag of 50
Bag(s)
M16 (Form A) Stainless Steel 17mm 30mm A4 316 3mm Plain
RS Stock No. 189-664
BrandRS PRO
TWD237.00
1 Bag of 50
Bag(s)
M8 Stainless Steel 8.4mm 17mm A4 316 1mm Plain
RS Stock No. 797-6257
BrandRS PRO
TWD213.00
1 Bag of 100
Bag(s)
M6 Stainless Steel 6.4mm 18mm A2 304 1.6mm Plain
RS Stock No. 527-353
BrandRS PRO
TWD205.00
1 Bag of 250
Bag(s)
M2.5 (Form A) Stainless Steel 2.7mm 6mm A2 304 0.5mm Plain
RS Stock No. 797-6077
BrandRS PRO
TWD350.00
1 Bag of 100
Bag(s)
M10 (Form A) Stainless Steel 10.5mm 20mm A2 304 2mm Plain
RS Stock No. 530-804
BrandRS PRO
TWD359.00
1 Bag of 100
Bag(s)
M10 (Form B) Stainless Steel 10.5mm 21mm A2 304 1.25mm Plain
RS Stock No. 122-4387
BrandRS PRO
TWD52.00
1 Bag of 100
Bag(s)
M6 (Form B) Steel 6.4mm 12.5mm - 0.9mm Bright Zinc Plated
RS Stock No. 797-6083
BrandRS PRO
TWD660.00
1 Bag of 50
Bag(s)
M20 (Form A) Stainless Steel 21mm 37mm A2 304 3mm Plain
RS Stock No. 797-6086
BrandRS PRO
TWD103.00
1 Bag of 100
Bag(s)
M6 (Form B) Stainless Steel 6.4mm 12.5mm A2 304 0.8mm Plain
RS Stock No. 248-7106
BrandRS PRO
TWD141.00
1 Bag of 100
Bag(s)
M2.5 (Form A) Stainless Steel 2.7mm 6mm A4 316 0.5mm Plain
RS Stock No. 293-218
BrandRS PRO
TWD1,169.00
1 Bag of 100
Bag(s)
M10 Copper 10.5mm 13.7mm - 1.25mm Plain
RS Stock No. 122-4389
BrandRS PRO
TWD102.00
1 Bag of 100
Bag(s)
M10, M10 (Form B) Steel 10.5mm 21mm - 1.45mm Bright Zinc Plated
RS Stock No. 248-4618
BrandRS PRO
TWD525.00
1 Bag of 25
Bag(s)
M16 (Form B) Stainless Steel 17mm 30mm A4 316 2mm Plain
RS Stock No. 797-6254
BrandRS PRO
TWD705.00
1 Bag of 100
Bag(s)
M10 Stainless Steel 10.5mm 30mm A2 304 2.5mm Plain
RS Stock No. 192-5613
BrandRS PRO
TWD200.00
1 Bag of 50
Bag(s)
M16 - - 30mm - 3mm Plain
RS Stock No. 527-381
BrandRS PRO
TWD250.00
1 Bag of 250
Bag(s)
M4 (Form A) Stainless Steel 4.3mm 9mm A2 304 0.8mm Plain
RS Stock No. 479-5768
BrandRS PRO
TWD43.90
Each (In a Pack of 10)
units
- - - - - - -
RS Stock No. 293-224
BrandRS PRO
TWD1,638.00
1 Bag of 100
Bag(s)
M12 Copper 12.5mm 16mm - 1.6mm Plain