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. 276-847
BrandRS PRO
PHP248.54
1 Bag of 250
Bag(s)
M3 External Tooth 3.2mm 6mm Steel - Bright Zinc Plated 0.4mm
RS Stock No. 276-897
BrandRS PRO
PHP395.81
1 Bag of 100
Bag(s)
M8 External Tooth 8.4mm 15mm Steel - Bright Zinc Plated 0.8mm
RS Stock No. 187-0664
BrandRS PRO
PHP1,537.96
1 Bag of 50
Bag(s)
M20 Internal Tooth 21mm 33mm Stainless Steel A2 304 Plain 1.4mm
RS Stock No. 187-0608
BrandRS PRO
PHP355.96
1 Bag of 100
Bag(s)
M6 Internal Tooth 6.4mm 11mm Stainless Steel A2 304 Plain 0.7mm
RS Stock No. 187-0585
BrandRS PRO
PHP347.81
1 Bag of 100
Bag(s)
M4 Internal Tooth 4.3mm 8mm Stainless Steel A2 304 Plain 0.5mm
RS Stock No. 526-619
BrandRS PRO
PHP292.31
1 Bag of 250
Bag(s)
M6 Internal Tooth 6.4mm 11mm Steel - Bright Zinc Plated 0.7mm
RS Stock No. 526-574
BrandRS PRO
PHP261.86
1 Bag of 250
Bag(s)
M3 Internal Tooth 3.2mm 6mm Steel - Bright Zinc Plated 0.4mm
RS Stock No. 187-0658
BrandRS PRO
PHP1,046.82
1 Bag of 50
Bag(s)
M16 Internal Tooth 17mm 26mm Stainless Steel A2 304 Plain 1.2mm
RS Stock No. 428-767
BrandRS PRO
PHP787.90
1 Bag of 25
Bag(s)
7/16in Crinkle - - Stainless Steel A2 304 Plain -
RS Stock No. 276-869
BrandRS PRO
PHP238.89
1 Bag of 250
Bag(s)
M4 External Tooth 4.3mm 8mm Steel - Bright Zinc Plated 0.5mm
RS Stock No. 530-141
BrandRS PRO
PHP560.75
1 Bag of 100
Bag(s)
M12 Internal Tooth 13mm 20.5mm Steel - Bright Zinc Plated 1mm
RS Stock No. 428-616
BrandRS PRO
PHP159.76
1 Bag of 100
Bag(s)
M2 Crinkle 2.25mm 4.51mm Stainless Steel A2 304 Plain 0.16mm
RS Stock No. 289-685
BrandRS PRO
PHP334.08
1 Bag of 50
Bag(s)
M5 Crinkle 5.36mm 9.09mm Copper - Plain 0.3mm
RS Stock No. 289-679
BrandRS PRO
PHP433.17
1 Bag of 100
Bag(s)
M4 Crinkle 4.36mm 7.99mm Copper - Plain 0.28mm
RS Stock No. 665-7299
BrandRS PRO
PHP394.67
1 Bag of 100
Bag(s)
M3 Internal Tooth 3.2mm 6mm Stainless Steel A4 316 Plain 0.4mm
RS Stock No. 428-622
BrandRS PRO
PHP146.15
1 Bag of 100
Bag(s)
M2.5 Crinkle 2.75mm 5.71mm Stainless Steel A2 304 Plain 0.16mm
RS Stock No. 428-773
BrandRS PRO
PHP774.12
1 Bag of 25
Bag(s)
1/2in Crinkle - - Stainless Steel A2 304 Plain -
RS Stock No. 276-910
BrandRS PRO
PHP534.91
1 Bag of 100
Bag(s)
M12 External Tooth 13mm 20.5mm Steel - Bright Zinc Plated 1mm
RS Stock No. 665-7302
BrandRS PRO
PHP525.64
1 Bag of 100
Bag(s)
M5 Internal Tooth 5.3mm 10mm Stainless Steel A4 316 Plain 0.6mm
RS Stock No. 428-638
BrandRS PRO
PHP177.55
1 Bag of 100
Bag(s)
M3 Crinkle 3.26mm 6.29mm Stainless Steel A2 304 Plain 0.16mm
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