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M4 Metric Washers in A2 Stainless Steel

This page lists all the various types of M4 Metric Washers in A2 Stainless Steel that we currently offer. Use this page to help select suitable washers for M4 metric bolts or screws.

The accompanying flat washer dimension table allows convenient comparison between the available M4 flat washer dimensions. The table only includes flat washers and, for completeness, may include washers only available in other materials.
M4 Flat Washer Dimensions (mm)
Type inner
diameter
outer
diameter
thickness
Form A
DIN 125
4.3 9.0 0.8
Form C
BS 4320
4.2 10 0.8
ISO 7089 4.3 9.0 0.8
ISO 7090 4.3 9.0 0.8
DIN 9021 4.3 12 1.0
For Cheesehead
DIN 433
4.3 8.0 0.5
Penny v1 4.3 12 1.0-1.5
Penny v2 4.3 15 1.0-1.5
Penny v3 4.3 20 1.0-1.5
Penny v4 4.3 25 1.0-1.5
Westfield Fasteners Ltd 2025
M4 Flat Washer Dimensions (mm)
Type inner
diameter
outer
diameter
thickness
Form A
DIN 125
4.3 9.0 0.8
Form C
BS 4320
4.2 10 0.8
ISO 7089 4.3 9.0 0.8
ISO 7090 4.3 9.0 0.8
DIN 9021 4.3 12 1.0
For Cheesehead
DIN 433
4.3 8.0 0.5
Penny v1 4.3 12 1.0-1.5
Penny v2 4.3 15 1.0-1.5
Penny v3 4.3 20 1.0-1.5
Penny v4 4.3 25 1.0-1.5
Westfield Fasteners Ltd 2025
Image Description Sale Qtys Qty Price Breakdown Despatch Estimate
M4 Countersunk Cup Washer Stamped in A2 Stainless Steel
WF78643 - 1328 in stock
sachet of 3 for £2.02
or box of 400 for £25.84
or bulk of 2000 for £88.39
£0.00  
M4 For Cheesehead Washer in A2 Stainless
WF10622 - 6557 in stock
sachet of 30 for £1.63
or box of 1000 for £6.59
or bulk of 5000 for £31.30
£0.00  
M4 Form A Washer in A2 Stainless
WF19 - 11261 in stock
sachet of 20 for £1.69
or box of 1000 for £6.45
or bulk of 5000 for £30.61
£0.00  
M4 Form C Washer in A2 Stainless
WF1182 - 5032 in stock
sachet of 20 for £1.16
or box of 1000 for £7.45
or bulk of 5000 for £34.11
£0.00  
M4 Heavy Washer in A2 Stainless
WF51106 - 5454 in stock
sachet of 10 for £1.57
or box of 500 for £16.58
or bulk of 2500 for £59.62
£0.00  
M4 200HV Flat Plain Washer ISO 7089 in A2 Stainless
WF73314 - 2644 in stock
sachet of 20 for £2.10
or box of 1000 for £12.69
or bulk of 5000 for £55.17
£0.00  
M4 Large Washer to DIN 9021 in A2 Stainless
WF11663 - 2815 in stock
sachet of 20 for £1.47
or box of 1000 for £9.85
or bulk of 5000 for £41.69
£0.00  
12mm OD M4 Penny Washer in A2 Stainless
WF60244 - 5232 in stock
sachet of 15 for £1.91
or box of 1000 for £16.15
or bulk of 5000 for £66.34
£0.00  
15mm OD M4 Penny Washer in A2 Stainless
WF60103 - 2003 in stock
sachet of 8 for £1.53
or box of 500 for £12.59
or bulk of 2500 for £51.86
£0.00  
20mm OD M4 Penny Washer in A2 Stainless
WF60189 - 887 in stock
sachet of 4 for £1.37
or box of 400 for £17.97
or bulk of 2000 for £71.66
£0.00  
25mm OD M4 Penny Washer in A2 Stainless
WF60190 - 909 in stock
sachet of 2 for £1.14
or box of 200 for £15.15
or bulk of 1000 for £60.72
£0.00  
M4 x 8 x 0.2mm Shim Washer DIN 988 in A2 Stainless Steel
WF86378 - expected in 24 to 36 days
sachet of 8 for £1.34
or box of 100 for £6.45
or bulk of 500 for £26.52
£0.00  
M4 x 8 x 0.5mm Shim Washer DIN 988 in A2 Stainless Steel
WF86379 - expected in 24 to 36 days
sachet of 8 for £1.44
or box of 100 for £7.04
or bulk of 500 for £28.63
£0.00  
M4 Shakeproof Lock Washer External Tooth in A2 Stainless
WF25760 - 2612 in stock
sachet of 20 for £1.15
or box of 1000 for £6.97
or bulk of 5000 for £32.75
£0.00  
M4 Shakeproof Lock Washer Internal Tooth in A2 Stainless
WF31 - 5769 in stock
sachet of 20 for £1.23
or box of 1000 for £7.40
or bulk of 5000 for £34.48
£0.00  
M4 Cone Lock Washer (Belleville) in A2 Stainless
WF20952 - 1552 in stock
sachet of 20 for £1.46
or box of 600 for £5.50
or bulk of 3000 for £27.16
£0.00  
M4 Spring Washer (Rectangular) in A2 Stainless
WF20903 - 12653 in stock
sachet of 50 for £1.46
or box of 2000 for £7.51
or bulk of 10000 for £34.20
£0.00  
M4 Spring Washer (Square) in A2 Stainless
WF25 - 11218 in stock
sachet of 40 for £1.31
or box of 1000 for £4.13
or bulk of 5000 for £20.66
£0.00  
Wave Washer (Type A) M4 in A2 Stainless
WF10632 - 2302 in stock
sachet of 30 for £2.28
or box of 1000 for £9.19
or bulk of 5000 for £41.60
£0.00  
M4 Tab Washer to DIN 463 in A2 Stainless
WF63138 - 512 in stock
sachet of 10 for £1.40
or box of 100 for £5.49
or bulk of 500 for £23.14
£0.00  
sachet of 3 for £2.02
or box of 400 for £25.84
or bulk of 2000 for £88.39
sachet of 30 for £1.63
or box of 1000 for £6.59
or bulk of 5000 for £31.30
sachet of 20 for £1.69
or box of 1000 for £6.45
or bulk of 5000 for £30.61
sachet of 20 for £1.16
or box of 1000 for £7.45
or bulk of 5000 for £34.11
sachet of 10 for £1.57
or box of 500 for £16.58
or bulk of 2500 for £59.62
sachet of 20 for £2.10
or box of 1000 for £12.69
or bulk of 5000 for £55.17
sachet of 20 for £1.47
or box of 1000 for £9.85
or bulk of 5000 for £41.69
sachet of 15 for £1.91
or box of 1000 for £16.15
or bulk of 5000 for £66.34
sachet of 8 for £1.53
or box of 500 for £12.59
or bulk of 2500 for £51.86
sachet of 4 for £1.37
or box of 400 for £17.97
or bulk of 2000 for £71.66
sachet of 2 for £1.14
or box of 200 for £15.15
or bulk of 1000 for £60.72
sachet of 8 for £1.34
or box of 100 for £6.45
or bulk of 500 for £26.52
sachet of 8 for £1.44
or box of 100 for £7.04
or bulk of 500 for £28.63
sachet of 20 for £1.15
or box of 1000 for £6.97
or bulk of 5000 for £32.75
sachet of 20 for £1.23
or box of 1000 for £7.40
or bulk of 5000 for £34.48
sachet of 20 for £1.46
or box of 600 for £5.50
or bulk of 3000 for £27.16
sachet of 50 for £1.46
or box of 2000 for £7.51
or bulk of 10000 for £34.20
sachet of 40 for £1.31
or box of 1000 for £4.13
or bulk of 5000 for £20.66
sachet of 30 for £2.28
or box of 1000 for £9.19
or bulk of 5000 for £41.60
sachet of 10 for £1.40
or box of 100 for £5.49
or bulk of 500 for £23.14
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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