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
TWD139.00
1 Bag of 250
Bag(s)
M6 Steel 6.4mm 12.5mm - 1.6mm Bright Zinc Plated
RS Stock No. 797-6361
BrandRS PRO
TWD670.00
1 Bag of 50
Bag(s)
M16 (Form A) Stainless Steel 17mm 30mm A4 316 3mm Plain
RS Stock No. 530-797
BrandRS PRO
TWD170.00
1 Bag of 100
Bag(s)
M8 (Form B) Stainless Steel 8.4mm 17mm A2 304 1mm Plain
RS Stock No. 797-6077
BrandRS PRO
TWD345.00
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
TWD259.00
1 Bag of 100
Bag(s)
M10 (Form B) Stainless Steel 10.5mm 21mm A2 304 1.25mm Plain
RS Stock No. 189-664
BrandRS PRO
TWD220.00
1 Bag of 50
Bag(s)
M6 Stainless Steel 8.4mm 17mm A4 316 1mm Plain
RS Stock No. 122-4387
BrandRS PRO
TWD51.00
1 Bag of 100
Bag(s)
M6 (Form B) Steel 6.4mm 12.5mm - 0.9mm Bright Zinc Plated
RS Stock No. 797-6257
BrandRS PRO
TWD197.00
1 Bag of 100
Bag(s)
M6 Stainless Steel 6.4mm 18mm A2 304 1.6mm Plain
RS Stock No. 527-353
BrandRS PRO
TWD194.00
1 Bag of 250
Bag(s)
M2.5 (Form A) Stainless Steel 2.7mm 6mm A2 304 0.5mm Plain
RS Stock No. 179-5723
BrandRS PRO
TWD1,375.00
1 Bag of 250
Bag(s)
M1.4 Stainless Steel 1.5mm 3mm A2 304 0.3mm -
RS Stock No. 179-5724
BrandRS PRO
TWD131.00
1 Bag of 250
Bag(s)
M1.6 Stainless Steel 1.7mm 3.7 → 4mm A2 304 0.3 → 0.25mm -
RS Stock No. 527-404
BrandRS PRO
TWD266.00
1 Bag of 250
Bag(s)
M6 (Form A) Stainless Steel 6.4mm 12mm A2 304 1.6mm Plain
RS Stock No. 482-7720
BrandRS PRO
TWD150.00
1 Bag of 250
Bag(s)
M5 Brass 5.3mm 10mm - 1mm Nickel Plated
RS Stock No. 483-0697
BrandRS PRO
TWD558.00
1 Bag of 250
Bag(s)
2BA Brass 5.13mm 9.9mm - 0.76mm Nickel Plated
RS Stock No. 248-4618
BrandRS PRO
TWD522.00
1 Bag of 25
Bag(s)
M16 (Form B) Stainless Steel 17mm 30mm A4 316 2mm Plain
RS Stock No. 122-4378
BrandRS PRO
TWD58.00
1 Bag of 100
Bag(s)
M5 (Form C) Steel 5.3mm 12.5mm - 1mm Bright Zinc Plated
RS Stock No. 483-0631
BrandRS PRO
TWD137.00
1 Bag of 250
Bag(s)
M3 Brass 3.2mm 7mm - 0.5mm Nickel Plated
RS Stock No. 122-4398
BrandRS PRO
TWD1,644.00
1 Bag of 50
Bag(s)
M20 (Form G) Steel 22mm 60mm - 5mm Bright Zinc Plated
RS Stock No. 797-6367
BrandRS PRO
TWD631.00
1 Bag of 100
Bag(s)
M12 (Form A) Stainless Steel 13mm 24mm A4 316 2.5mm Plain
RS Stock No. 527-347
BrandRS PRO
TWD146.00
1 Bag of 250
Bag(s)
M2 (Form A) Stainless Steel 2.2mm 5mm A2 304 0.3mm Plain