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. 189-636
BrandRS PRO
MYR26.27
1 Bag of 100
Bag(s)
M4 (Form A) Stainless Steel 4.3mm 9mm A4 316 0.8mm Plain
RS Stock No. 797-6257
BrandRS PRO
MYR30.86
1 Bag of 100
Bag(s)
M6 Stainless Steel 6.4mm 18mm A2 304 1.6mm Plain
RS Stock No. 527-381
BrandRS PRO
MYR37.05
1 Bag of 250
Bag(s)
M4 (Form A) Stainless Steel 4.3mm 9mm A2 304 0.8mm Plain
RS Stock No. 189-658
BrandRS PRO
MYR30.52
1 Bag of 100
Bag(s)
M6 (Form A) Stainless Steel 6.4mm 12mm A4 316 1.6mm Plain
RS Stock No. 122-4379
BrandRS PRO
MYR13.18
1 Bag of 100
Bag(s)
M6 (Form C) Steel 6.4mm 14mm - 1.5mm Bright Zinc Plated
RS Stock No. 797-6263
BrandRS PRO
MYR259.38
1 Bag of 100
Bag(s)
M12 Stainless Steel 13mm 37mm A2 304 3mm Plain
RS Stock No. 483-0631
BrandRS PRO
MYR21.50
1 Bag of 250
Bag(s)
M3 Brass 3.2mm 7mm - 0.5mm Nickel Plated
RS Stock No. 122-4378
BrandRS PRO
MYR9.55
1 Bag of 100
Bag(s)
M5 (Form C) Steel 5.3mm 12.5mm - 1mm Bright Zinc Plated
RS Stock No. 483-0653
BrandRS PRO
MYR25.66
1 Bag of 250
Bag(s)
M4 Brass 4.3mm 9mm - 0.8mm Nickel Plated
RS Stock No. 527-369
BrandRS PRO
MYR30.73
1 Bag of 250
Bag(s)
M3 (Form A) Stainless Steel 3.2mm 7mm A2 304 0.5mm Plain
RS Stock No. 527-404
BrandRS PRO
MYR34.36
1 Bag of 250
Bag(s)
M6 (Form A) Stainless Steel 6.4mm 12mm A2 304 1.6mm Plain
RS Stock No. 797-6373
BrandRS PRO
MYR22.35
1 Bag of 50
Bag(s)
M6 (Form B) Stainless Steel 6.4mm 12.5mm A4 316 0.8mm Plain
RS Stock No. 525-947
BrandRS PRO
MYR17.71
1 Bag of 250
Bag(s)
M6 Steel 6.4mm 12.5mm - 1.6mm Bright Zinc Plated
RS Stock No. 525-925
BrandRS PRO
MYR13.87
1 Bag of 250
Bag(s)
M4 Steel 4.3mm 9mm - 0.8mm Bright Zinc Plated
RS Stock No. 530-810
BrandRS PRO
MYR52.45
1 Bag of 100
Bag(s)
M12 (Form B) Stainless Steel 13mm 24mm A2 304 1.6mm Plain
RS Stock No. 293-224
BrandRS PRO
MYR202.41
1 Bag of 100
Bag(s)
M12 Copper 12.5mm 16mm - 1.6mm Plain
RS Stock No. 122-4387
BrandRS PRO
MYR9.11
1 Bag of 100
Bag(s)
M6 (Form B) Steel 6.4mm 12.5mm - 0.9mm Bright Zinc Plated
RS Stock No. 530-084
BrandRS PRO
MYR45.49
1 Bag of 100
Bag(s)
M12 Steel 13mm 24mm - 2.5mm Bright Zinc Plated
RS Stock No. 275-715
BrandRS PRO
MYR65.35
1 Bag of 50
Bag(s)
M16 (Form B) Stainless Steel 17mm 30mm A2 304 2mm Plain
RS Stock No. 560-338
BrandRS PRO
MYR7.63
1 Bag of 250
Bag(s)
M3 Steel 3.2mm 7mm - 0.5mm Zinc Plated