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. 527-634
BrandRS PRO
HK$27.47
1 Bag of 100
Bag(s)
M8 Steel 8.4mm 16mm - 1.6mm Bright Zinc Plated
RS Stock No. 527-369
BrandRS PRO
HK$51.38
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
HK$69.66
1 Bag of 250
Bag(s)
M6 (Form A) Stainless Steel 6.4mm 12mm A2 304 1.6mm Plain
RS Stock No. 527-397
BrandRS PRO
HK$60.06
1 Bag of 250
Bag(s)
M5 (Form A) Stainless Steel 5.3mm 10mm A2 304 1mm Plain
RS Stock No. 797-6389
BrandRS PRO
HK$73.14
1 Bag of 100
Bag(s)
M8 (Form A) Stainless Steel 8.4mm 16mm A4 316 1.6mm Plain
RS Stock No. 189-620
BrandRS PRO
HK$40.23
1 Bag of 100
Bag(s)
M3 (Form A) Stainless Steel 3.2mm 7mm A4 316 0.5mm Plain
RS Stock No. 189-658
BrandRS PRO
HK$51.08
1 Bag of 100
Bag(s)
M6 (Form A) Stainless Steel 6.4mm 12mm A4 316 1.6mm Plain
RS Stock No. 189-642
BrandRS PRO
HK$46.44
1 Bag of 100
Bag(s)
M5 (Form A) Stainless Steel 5.3mm 10mm A4 316 1mm Plain
RS Stock No. 797-6263
BrandRS PRO
HK$498.65
1 Bag of 100
Bag(s)
M12 Stainless Steel 13mm 37mm A2 304 3mm Plain
RS Stock No. 527-640
BrandRS PRO
HK$53.40
1 Bag of 100
Bag(s)
M10 Steel 10.5mm 20mm - 2mm Bright Zinc Plated
RS Stock No. 527-381
BrandRS PRO
HK$63.85
1 Bag of 250
Bag(s)
M4 (Form A) Stainless Steel 4.3mm 9mm A2 304 0.8mm Plain
RS Stock No. 189-670
BrandRS PRO
HK$81.03
1 Bag of 50
Bag(s)
M10 (Form B) Stainless Steel 10.5mm 21mm A4 316 1.25mm Plain
RS Stock No. 189-636
BrandRS PRO
HK$43.10
1 Bag of 100
Bag(s)
M4 (Form A) Stainless Steel 4.3mm 9mm A4 316 0.8mm Plain
RS Stock No. 483-2637
BrandRS PRO
HK$152.08
1 Bag of 100
Bag(s)
M8 Brass 8.4mm 16mm - 1.6mm Plain
RS Stock No. 530-804
BrandRS PRO
HK$69.66
1 Bag of 100
Bag(s)
M10 (Form B) Stainless Steel 10.5mm 21mm A2 304 1.25mm Plain
RS Stock No. 797-6254
BrandRS PRO
HK$175.66
1 Bag of 100
Bag(s)
M10 Stainless Steel 10.5mm 30mm A2 304 2.5mm Plain
RS Stock No. 560-322
BrandRS PRO
HK$22.99
1 Bag of 250
Bag(s)
M2.5 Steel 2.7mm 6mm - 0.5mm Zinc Plated
RS Stock No. 248-7106
BrandRS PRO
HK$34.83
1 Bag of 100
Bag(s)
M2.5 (Form A) Stainless Steel 2.7mm 6mm A4 316 0.5mm Plain
RS Stock No. 797-6086
BrandRS PRO
HK$24.37
1 Bag of 100
Bag(s)
M6 (Form B) Stainless Steel 6.4mm 12.5mm A2 304 0.8mm Plain
RS Stock No. 183-9051
BrandRS PRO
HK$104.48
1 Bag of 50
Bag(s)
M12 (Form B) Stainless Steel 13mm 24mm A4 316 1.6mm Plain