Lock Washers

Lock washers are used for keeping nuts and bolts coming loose. They come in various models. Each lock washer is made for a specific application. Some lock washers come in a ring shape the others can be star-shaped with an outer ring of teeth.


What is the use of the Lock Washer?


The lock washer prevents nuts and bolts from turning, slipping and coming loose because of vibration and twist. The basic functionality of lock washer is to hold nut and bolt in place.


What are the types of Lock Washers?


You can choose from helical also known as a split washer, external-tooth also known as star washer, pyramid-type or dome-type lock washer.


The helical lock washer is in shape of the ring with uneven ends. The edge of the ring grabs onto fastener material to keep it from moving.


External-tooth lock washer has teeth located on the outside of the ring and it is most suitable for large fasteners heads.


Pyramid-type lock washers are required for any jobs that need high-tightening torques.


Dome-type lock washers are recommended for use with thin and soft materials


What materials are Lock Washers made from?


You can choose from:



  • aluminium

  • stainless steel

  • K-Monel

  • bronze

  • zinc

  • phosphor bronze alloy

  • carbon steel

Suitable for a wide field of applications:


  • Mechanical Engineering

  • Wind Energy Technology

  • Automotive Industry

  • Agriculture and Forestry

  • Railway

  • Marine

  • Household appliances such as air handlers and clothes washers

...
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Description Price For Screw/Bolt Size Washer Type Inside Diameter Outside Diameter Material Stainless Steel Type Finish Thickness
RS Stock No. 187-0557
BrandRS PRO
$9.76
1 Bag of 100
Bag(s)
M3 Internal Tooth 3.2mm 6mm Stainless Steel A2 304 Plain 0.4mm
RS Stock No. 187-0608
BrandRS PRO
$13.21
1 Bag of 100
Bag(s)
M6 Internal Tooth 6.4mm 11mm Stainless Steel A2 304 Plain 0.7mm
RS Stock No. 276-869
BrandRS PRO
$9.73
1 Bag of 250
Bag(s)
M4 External Tooth 4.3mm 8mm Steel - Bright Zinc Plated 0.5mm
RS Stock No. 428-638
BrandRS PRO
$6.50
1 Bag of 100
Bag(s)
M3 Crinkle 3.26mm 6.29mm Stainless Steel A2 304 Plain 0.16mm
RS Stock No. 428-616
BrandRS PRO
$6.44
1 Bag of 100
Bag(s)
M2 Crinkle 2.25mm 4.51mm Stainless Steel A2 304 Plain 0.16mm
RS Stock No. 526-619
BrandRS PRO
$9.83
1 Bag of 250
Bag(s)
M6 Internal Tooth 6.4mm 11mm Steel - Bright Zinc Plated 0.7mm
RS Stock No. 665-7309
BrandRS PRO
$14.29
1 Bag of 100
Bag(s)
M4 Internal Tooth 4.3mm 8mm Stainless Steel A4 316 Plain 0.5mm
RS Stock No. 187-0535
BrandRS PRO
$7.05
1 Bag of 100
Bag(s)
M2 Internal Tooth 2.2mm 4.5mm Stainless Steel A2 304 Plain 0.3mm
RS Stock No. 526-596
BrandRS PRO
$9.20
1 Bag of 250
Bag(s)
M4 Internal Tooth 4.3mm 8mm Steel - Bright Zinc Plated 0.5mm
RS Stock No. 428-672
BrandRS PRO
$8.68
1 Bag of 50
Bag(s)
M6 Crinkle 6.48mm 11.37mm Stainless Steel A2 304 Plain 0.4mm
RS Stock No. 428-666
BrandRS PRO
$8.21
1 Bag of 50
Bag(s)
M5 Crinkle 5.36mm 9.09mm Stainless Steel A2 304 Plain 0.3mm
RS Stock No. 276-847
BrandRS PRO
$7.84
1 Bag of 250
Bag(s)
M3 External Tooth 3.2mm 6mm Steel - Bright Zinc Plated 0.4mm
RS Stock No. 526-574
BrandRS PRO
$12.17
1 Bag of 250
Bag(s)
M3 Internal Tooth 3.2mm 6mm Steel - Bright Zinc Plated 0.4mm
RS Stock No. 187-0664
BrandRS PRO
$30.99
1 Bag of 50
Bag(s)
M20 Internal Tooth 21mm 33mm Stainless Steel A2 304 Plain 1.4mm
RS Stock No. 187-0585
BrandRS PRO
$9.27
1 Bag of 100
Bag(s)
M4 Internal Tooth 4.3mm 8mm Stainless Steel A2 304 Plain 0.5mm
RS Stock No. 276-875
BrandRS PRO
$12.11
1 Bag of 250
Bag(s)
M5 External Tooth 5.3mm 10mm Steel - Bright Zinc Plated 0.6mm
RS Stock No. 276-881
BrandRS PRO
$15.08
1 Bag of 250
Bag(s)
M6 External Tooth 6.4mm 11mm Steel - Bright Zinc Plated 0.7mm
RS Stock No. 428-650
BrandRS PRO
$10.86
1 Bag of 100
Bag(s)
M4 Crinkle 4.36mm 7.99mm Stainless Steel A2 304 Plain 0.28mm
RS Stock No. 187-0591
BrandRS PRO
$9.09
1 Bag of 100
Bag(s)
M5 Internal Tooth 5.3mm 10mm Stainless Steel A2 304 Plain 0.6mm
RS Stock No. 665-7306
BrandRS PRO
$21.48
1 Bag of 100
Bag(s)
M6 Internal Tooth 6.4mm 11mm Stainless Steel A4 316 Plain 0.7mm
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