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
€3.51
1 Bag of 100
Bag(s)
M3 Internal Tooth 3.2mm 6mm Stainless Steel A2 304 Plain 0.4mm
RS Stock No. 665-7309
BrandRS PRO
€6.50
1 Bag of 100
Bag(s)
M4 Internal Tooth 4.3mm 8mm Stainless Steel A4 316 Plain 0.5mm
RS Stock No. 276-847
BrandRS PRO
€4.54
1 Bag of 250
Bag(s)
M3 External Tooth 3.2mm 6mm Steel - Bright Zinc Plated 0.4mm
RS Stock No. 276-869
BrandRS PRO
€4.67
1 Bag of 250
Bag(s)
M4 External Tooth 4.3mm 8mm Steel - Bright Zinc Plated 0.5mm
RS Stock No. 187-0535
BrandRS PRO
€3.38
1 Bag of 100
Bag(s)
M2 Internal Tooth 2.2mm 4.5mm Stainless Steel A2 304 Plain 0.3mm
RS Stock No. 665-7312
BrandRS PRO
€18.20
1 Bag of 50
Bag(s)
M12 Internal Tooth 13mm 20.5mm Stainless Steel A4 316 Plain 1.08mm
RS Stock No. 187-0585
BrandRS PRO
€4.03
1 Bag of 100
Bag(s)
M4 Internal Tooth 4.3mm 8mm Stainless Steel A2 304 Plain 0.5mm
RS Stock No. 665-7315
BrandRS PRO
€8.44
1 Bag of 50
Bag(s)
M8 Internal Tooth 8.4mm 15mm Stainless Steel A4 316 Plain 0.8mm
RS Stock No. 526-619
BrandRS PRO
€5.20
1 Bag of 250
Bag(s)
M6 Internal Tooth 6.4mm 11mm Steel - Bright Zinc Plated 0.7mm
RS Stock No. 665-7299
BrandRS PRO
€4.75
1 Bag of 100
Bag(s)
M3 Internal Tooth 3.2mm 6mm Stainless Steel A4 316 Plain 0.4mm
RS Stock No. 187-0541
BrandRS PRO
€3.45
1 Bag of 100
Bag(s)
M2.5 Internal Tooth 2.7mm 5.5mm Stainless Steel A2 304 Plain 0.4mm
RS Stock No. 665-7318
BrandRS PRO
€11.05
1 Bag of 50
Bag(s)
M10 Internal Tooth 10.5mm 18mm Stainless Steel A4 316 Plain 0.9mm
RS Stock No. 428-672
BrandRS PRO
€4.49
1 Bag of 50
Bag(s)
M6 Crinkle 6.48mm 11.37mm Stainless Steel A2 304 Plain 0.4mm
RS Stock No. 526-603
BrandRS PRO
€4.55
1 Bag of 250
Bag(s)
M5 Internal Tooth 5.3mm 10mm Steel - Bright Zinc Plated 0.6mm
RS Stock No. 276-831
BrandRS PRO
€3.90
1 Bag of 250
Bag(s)
M2.5 External Tooth 2.7mm 5.5mm Steel - Bright Zinc Plated 0.3mm
RS Stock No. 187-0642
BrandRS PRO
€16.90
1 Bag of 100
Bag(s)
M12 Internal Tooth 13mm 20.5mm Stainless Steel A2 304 Plain 1mm
RS Stock No. 187-0614
BrandRS PRO
€8.19
1 Bag of 100
Bag(s)
M8 Internal Tooth 8.4mm 15mm Stainless Steel A2 304 Plain 0.8mm
RS Stock No. 665-7306
BrandRS PRO
€9.10
1 Bag of 100
Bag(s)
M6 Internal Tooth 6.4mm 11mm Stainless Steel A4 316 Plain 0.7mm
RS Stock No. 428-638
BrandRS PRO
€2.80
1 Bag of 100
Bag(s)
M3 Crinkle 3.26mm 6.29mm Stainless Steel A2 304 Plain 0.16mm
RS Stock No. 428-688
BrandRS PRO
€8.65
1 Bag of 50
Bag(s)
M8 Crinkle 8.48mm 14.87mm Stainless Steel A2 304 Plain 0.4mm
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