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. 527-353
BrandRS PRO
SGD9.85
1 Bag of 250
Bag(s)
M2.5 (Form A) Stainless Steel 2.7mm 6mm A2 304 0.5mm Plain
RS Stock No. 248-4624
BrandRS PRO
SGD34.92
1 Bag of 25
Bag(s)
M20 (Form B) Stainless Steel 21mm 37mm A4 316 2mm Plain
RS Stock No. 223-7406
BrandRS PRO
SGD13.46
Each
units
M5 Ceramic 5.5mm 10mm - 1.1mm Plain
RS Stock No. 293-202
BrandRS PRO
SGD52.53
1 Bag of 100
Bag(s)
M8 Copper 8.5mm 11.9mm - 1mm Plain
RS Stock No. 122-4378
BrandRS PRO
SGD3.33
1 Bag of 100
Bag(s)
M5 (Form C) Steel 5.3mm 12.5mm - 1mm Bright Zinc Plated
RS Stock No. 122-4397
BrandRS PRO
SGD36.87
1 Bag of 50
Bag(s)
M16 (Form G) Steel 18mm 48mm - 4mm Bright Zinc Plated
RS Stock No. 192-5609
BrandRS PRO
SGD3.98
1 Bag of 100
Bag(s)
M6 - - 12mm - 1.6mm Plain
RS Stock No. 483-0619
BrandRS PRO
SGD5.78
1 Bag of 250
Bag(s)
M2 Brass 2.2mm 5mm - 0.3mm Nickel Plated
RS Stock No. 797-6364
BrandRS PRO
SGD18.55
1 Bag of 100
Bag(s)
M10 (Form A) Stainless Steel 10.5mm 20mm A4 316 2mm Plain
RS Stock No. 527-347
BrandRS PRO
SGD7.23
1 Bag of 250
Bag(s)
M2 (Form A) Stainless Steel 2.2mm 5mm A2 304 0.3mm Plain
RS Stock No. 122-4384
BrandRS PRO
SGD13.86
1 Bag of 50
Bag(s)
M20 (Form C) Steel 21mm 39mm - 3mm Bright Zinc Plated
RS Stock No. 483-0681
BrandRS PRO
SGD33.24
1 Bag of 250
Bag(s)
0BA Brass 6.50mm 12.7mm - 1.01mm Nickel Plated
RS Stock No. 179-5723
BrandRS PRO
SGD146.47
1 Bag of 250
Bag(s)
M1.4 Stainless Steel 1.5mm 3mm A2 304 0.3mm -
RS Stock No. 483-0697
BrandRS PRO
SGD34.61
1 Bag of 250
Bag(s)
2BA Brass 5.13mm 9.9mm - 0.76mm Nickel Plated
RS Stock No. 179-5724
BrandRS PRO
SGD6.36
1 Bag of 250
Bag(s)
M1.6 Stainless Steel 1.7mm 3.7 → 4mm A2 304 0.3 → 0.25mm -
RS Stock No. 192-5613
BrandRS PRO
SGD9.49
1 Bag of 50
Bag(s)
M16 - - 30mm - 3mm Plain
RS Stock No. 122-4391
BrandRS PRO
SGD6.91
1 Bag of 50
Bag(s)
M16 (Form B) Steel 17mm 30mm - 2.2mm Bright Zinc Plated
RS Stock No. 797-6389
BrandRS PRO
SGD13.79
1 Bag of 100
Bag(s)
M8 (Form A) Stainless Steel 8.4mm 16mm A4 316 1.6mm Plain
RS Stock No. 122-4380
BrandRS PRO
SGD6.69
1 Bag of 100
Bag(s)
M8 (Form C) Steel 8.4mm 21mm - 1.6mm Bright Zinc Plated
RS Stock No. 483-0669
BrandRS PRO
SGD27.53
1 Bag of 250
Bag(s)
M6 Brass 6.4mm 12mm - 1.6mm Nickel Plated