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M12 Metric Washers in A4 Stainless Steel

This page lists all the various types of M12 Metric Washers in A4 Stainless Steel that we currently offer. Use this page to help select suitable washers for M12 metric bolts or screws.

The accompanying flat washer dimension table allows convenient comparison between the available M12 flat washer dimensions. The table only includes flat washers and, for completeness, may include washers only available in other materials.
M12 Flat Washer Dimensions ()
Type inner
diameter		 outer
diameter		 thickness
Form A
DIN 125		 13.0 24.0 2.5
Form B
BS 4320		 13.0 24.0 1.6
Form C
BS 4320		 13 28 2.5
ISO 7089 13.0 24.0 2.5
ISO 7090 13.0 24.0 2.5
DIN 9021 13.0 37 3.0
For Cheesehead
DIN 433		 13.0 20.0 2.0
Penny v1 12.5 30 1.3-1.5
Penny v2 12.5 35 1.3-1.5
Penny v3 12.5 40 1.3-1.5
Penny v4 12.5 50 1.3-1.5
Westfield Fasteners Ltd 2025
M12 Flat Washer Dimensions ()
Type inner
diameter		 outer
diameter		 thickness
Form A
DIN 125		 13.0 24.0 2.5
Form B
BS 4320		 13.0 24.0 1.6
Form C
BS 4320		 13 28 2.5
ISO 7089 13.0 24.0 2.5
ISO 7090 13.0 24.0 2.5
DIN 9021 13.0 37 3.0
For Cheesehead
DIN 433		 13.0 20.0 2.0
Penny v1 12.5 30 1.3-1.5
Penny v2 12.5 35 1.3-1.5
Penny v3 12.5 40 1.3-1.5
Penny v4 12.5 50 1.3-1.5
Westfield Fasteners Ltd 2025
Image Description Sale Qtys Qty Price Breakdown Despatch Estimate
M12 Conical Seat Washer (Type D) in A4 Stainless
WF51312		 £0.00
M12 Countersunk Cup Washer Stamped in A4 Stainless Steel
WF78650		 £0.00
M12 Washer for Wood Construction DIN 440 Type V in A4 Stainless
WF86212		 £0.00
M12 For Cheesehead Washer in A4 Stainless
WF14824		 £0.00
M12 Countersunk Washer in A4 Stainless
WF57596		 £0.00
Form A Washer M12 in A4 Stainless
WF10894		 £0.00
M12 Form B Washer in A4 Stainless
WF13308		 £0.00
M12 Form C Washer in A4 Stainless
WF14843		 £0.00
M12 Heavy Washer in A4 Stainless
WF51111		 £0.00
M12 Square Taper Washer for I-Sections in A4 Stainless Steel
WF86292		 £0.00
M12 200HV Flat Plain Washer ISO 7089 in A4 Stainless
WF69660		 £0.00
M12 Large Washer to DIN 9021 in A4 Stainless
WF14849		 £0.00
30mm OD M12 Penny Washer in A4 Stainless
WF60239		 £0.00
35mm OD M12 Penny Washer in A4 Stainless
WF10899		 £0.00
Penny Washer 40mm OD M12 in A4 Stainless
WF50203		 £0.00
50mm OD M12 Penny Washer in A4 Stainless
WF60243		 £0.00
Shakeproof Lock Washer External Tooth M12 in A4 Stainless
WF56858		 £0.00
Shakeproof Lock Washer Internal Tooth M12 in A4 Stainless
WF10906		 £0.00
M12 Spherical Washer (Type C) in A4 Stainless
WF51300		 £0.00
M12 Spring Washer (Rectangular) in A4 Stainless
WF20944		 £0.00
M12 Spring Washer (Square) in A4 Stainless
WF10913		 £0.00
M12 Square Plate Washer in A4 Stainless
WF39007		 £0.00
Square Taper Washer U-sections M12 in A4 Stainless
WF57022		 £0.00
M12 Tab Washer to DIN 463 in A4 Stainless
WF66373		 £0.00
M12 Washer for Wood Construction DIN 440 Type R in A4 Stainless
WF88356		 £0.00
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Prices are subject to quantity discounts based on a sliding scale. Enter the desired quantity in the relevant box in the table above. This will automatically calculate a line price indicating the applicable rate for the quantities selected. All prices shown exclude VAT.
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