M12 Metric Washers in Aluminium

This page lists all the various types of M12 Metric Washers in Aluminium 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 2024

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 2024

Image	Description	Sale Qtys	Qty	Price	Breakdown	Despatch Estimate
	M12 Form A Washer in Aluminium WF73506			£0.00

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M12 Form A Washer in Aluminium
WF73506

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