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. 276-875
BrandRS PRO
TWD181.00
1 Bag of 250
Bag(s)
M5 External Tooth 5.3mm 10mm Steel - Bright Zinc Plated 0.6mm
RS Stock No. 819-9824
Mfr. Part No.HLS-12
BrandHeico
TWD397.00
1 Bag of 10
Bag(s)
- Wedge Lock 13mm 19.5mm Unalloyed Steel - - -
RS Stock No. 187-0608
BrandRS PRO
TWD188.00
1 Bag of 100
Bag(s)
M6 Internal Tooth 6.4mm 11mm Stainless Steel A2 304 Plain 0.7mm
RS Stock No. 289-685
BrandRS PRO
TWD141.00
1 Bag of 50
Bag(s)
M5 Crinkle 5.36mm 9.09mm Copper - Plain 0.3mm
RS Stock No. 428-650
BrandRS PRO
TWD172.00
1 Bag of 100
Bag(s)
M4 Crinkle 4.36mm 7.99mm Stainless Steel A2 304 Plain 0.28mm
RS Stock No. 428-666
BrandRS PRO
TWD192.00
1 Bag of 50
Bag(s)
M5 Crinkle 5.36mm 9.09mm Stainless Steel A2 304 Plain 0.3mm
RS Stock No. 289-641
BrandRS PRO
TWD88.00
1 Bag of 100
Bag(s)
M2.5 Crinkle 2.75mm 5.71mm Copper - Plain 0.16mm
RS Stock No. 289-691
BrandRS PRO
TWD228.00
1 Bag of 50
Bag(s)
M6 Crinkle 6.48mm 11.37mm Copper - Plain 0.4mm
RS Stock No. 526-596
BrandRS PRO
TWD138.00
1 Bag of 250
Bag(s)
M4 Internal Tooth 4.3mm 8mm Steel - Bright Zinc Plated 0.5mm
RS Stock No. 289-657
BrandRS PRO
TWD90.00
1 Bag of 100
Bag(s)
M3 Crinkle 3.26mm 6.29mm Copper - Plain 0.16mm
RS Stock No. 289-708
BrandRS PRO
TWD371.00
1 Bag of 50
Bag(s)
M8 Crinkle 8.48mm 14.87mm Copper - Plain 0.44mm
RS Stock No. 914-3395
Mfr. Part No.H-HLRS-20
BrandHeico
TWD1,206.00
1 Bag of 10
Bag(s)
M20 Ring Lock 21.7mm 30.7mm Steel - Zinc 3.5mm
RS Stock No. 914-3373
Mfr. Part No.H-HLRS-5
BrandHeico
TWD1,192.00
1 Bag of 50
Bag(s)
M5 Ring Lock 5.4mm 9mm Steel - Zinc 1.5mm
RS Stock No. 914-3358
Mfr. Part No.WLB05
BrandHeico
TWD757.00
1 Bag of 50
Bag(s)
M5 Wedge Lock 5.4mm 10.8mm Carbon Steel - Zinc 1.7mm
RS Stock No. 276-869
BrandRS PRO
TWD138.00
1 Bag of 250
Bag(s)
M4 External Tooth 4.3mm 8mm Steel - Bright Zinc Plated 0.5mm
RS Stock No. 665-7315
BrandRS PRO
TWD264.00
1 Bag of 50
Bag(s)
M8 Internal Tooth 8.4mm 15mm Stainless Steel A4 316 Plain 0.8mm
RS Stock No. 276-831
BrandRS PRO
TWD120.00
1 Bag of 250
Bag(s)
M2.5 External Tooth 2.7mm 5.5mm Steel - Bright Zinc Plated 0.3mm
RS Stock No. 428-672
BrandRS PRO
TWD142.00
1 Bag of 50
Bag(s)
M6 Crinkle 6.48mm 11.37mm Stainless Steel A2 304 Plain 0.4mm
RS Stock No. 172-0873
BrandRS PRO
TWD733.00
1 Bag of 40
Bag(s)
- - 4.85mm 14mm TPE - - 8.1mm
RS Stock No. 289-679
BrandRS PRO
TWD182.00
1 Bag of 100
Bag(s)
M4 Crinkle 4.36mm 7.99mm Copper - Plain 0.28mm