Home / Metric Washers / M12 Metric Washers in A4 Stainless Steel

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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 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
	50mm OD M12 Penny Washer in A4 Stainless WF60243			£0.00
	Shakeproof Lock Washer External Tooth M12 in A4 Stainless WF56858			£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
	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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M12 Conical Seat Washer (Type D) in A4 Stainless
WF51312

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M12 Countersunk Cup Washer Stamped in A4 Stainless Steel
WF78650

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M12 Washer for Wood Construction DIN 440 Type V in A4 Stainless
WF86212

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M12 For Cheesehead Washer in A4 Stainless
WF14824

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M12 Countersunk Washer in A4 Stainless
WF57596

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Form A Washer M12 in A4 Stainless
WF10894

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M12 Form B Washer in A4 Stainless
WF13308

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M12 Form C Washer in A4 Stainless
WF14843

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M12 Heavy Washer in A4 Stainless
WF51111

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M12 200HV Flat Plain Washer ISO 7089 in A4 Stainless
WF69660

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M12 Large Washer to DIN 9021 in A4 Stainless
WF14849

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30mm OD M12 Penny Washer in A4 Stainless
WF60239

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35mm OD M12 Penny Washer in A4 Stainless
WF10899

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50mm OD M12 Penny Washer in A4 Stainless
WF60243

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Shakeproof Lock Washer External Tooth M12 in A4 Stainless
WF56858

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M12 Spherical Washer (Type C) in A4 Stainless
WF51300

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M12 Spring Washer (Rectangular) in A4 Stainless
WF20944

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M12 Spring Washer (Square) in A4 Stainless
WF10913

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M12 Square Plate Washer in A4 Stainless
WF39007

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M12 Tab Washer to DIN 463 in A4 Stainless
WF66373

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M12 Washer for Wood Construction DIN 440 Type R in A4 Stainless
WF88356

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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.