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M20 Metric Washers in A4 Stainless Steel

This page lists all the various types of M20 Metric Washers in A4 Stainless Steel that we currently offer. Use this page to help select suitable washers for M20 metric bolts or screws.

The accompanying flat washer dimension table allows convenient comparison between the available M20 flat washer dimensions. The table only includes flat washers and, for completeness, may include washers only available in other materials.
M20 Flat Washer Dimensions ()
Type inner
diameter
outer
diameter
thickness
Form A
DIN 125
21.0 37.0 3.0
Form B
BS 4320
21.0 37.0 2.0
Form C
BS 4320
21 39 3.0
ISO 7089 21.0 37.0 3.0
ISO 7090 21.0 37.0 3.0
DIN 9021 22.0 60 4.0
For Cheesehead
DIN 433
21.0 34.0 3.0
Westfield Fasteners Ltd 2025
M20 Flat Washer Dimensions ()
Type inner
diameter
outer
diameter
thickness
Form A
DIN 125
21.0 37.0 3.0
Form B
BS 4320
21.0 37.0 2.0
Form C
BS 4320
21 39 3.0
ISO 7089 21.0 37.0 3.0
ISO 7090 21.0 37.0 3.0
DIN 9021 22.0 60 4.0
For Cheesehead
DIN 433
21.0 34.0 3.0
Westfield Fasteners Ltd 2025
Image Description Sale Qtys Qty Price Breakdown Despatch Estimate
M20 Conical Seat Washer (Type D) in A4 Stainless
WF51314 - 1 in stock
single washer for £5.08
or box of 10 for £25.84
or bulk of 50 for £128.27
£0.00  
M20 Washer for Wood Construction DIN 440 Type V in A4 Stainless
WF86214 - expected in 26 to 39 days
single washer for £5.13
or box of 6 for £19.47
or bulk of 30 for £77.82
£0.00  
Form A Washer M20 in A4 Stainless
WF16353 - expected in 3 to 5 days
single washer for £2.43
or box of 50 for £15.60
or bulk of 250 for £63.87
£0.00  
M20 Form B Washer in A4 Stainless
WF44197 - 155 in stock
single washer for £2.10
or box of 80 for £21.14
or bulk of 400 for £85.18
£0.00  
M20 Heavy Washer in A4 Stainless
WF51115 - 12 in stock
single washer for £5.32
or box of 6 for £21.88
or bulk of 30 for £76.14
£0.00  
M20 Square Taper Washer for I-Sections in A4 Stainless Steel
WF86294 - expected in 22 to 33 days
single washer for £6.72
or box of 4 for £20.22
or bulk of 20 for £84.58
£0.00  
M20 200HV Flat Plain Washer ISO 7089 in A4 Stainless
WF73192 - 5 in stock
single washer for £2.50
or box of 50 for £18.83
or bulk of 250 for £76.53
£0.00  
M20 Large Washer to DIN 9021 in A4 Stainless
WF26039 - 36 in stock
single washer for £3.30
or box of 15 for £18.93
or bulk of 75 for £75.90
£0.00  
M20 Spherical Washer (Type C) in A4 Stainless
WF51302 - 8 in stock
single washer for £4.22
or box of 8 for £18.15
or bulk of 40 for £76.66
£0.00  
M20 Spring Washer (Rectangular) in A4 Stainless
WF20950 - 43 in stock
single washer for £2.28
or box of 50 for £14.72
or bulk of 250 for £60.32
£0.00  
M20 Square Plate Washer in A4 Stainless
WF20267 - 34 in stock
single washer for £4.54
or box of 10 for £29.44
or bulk of 50 for £119.97
£0.00  
Square Taper Washer U-sections M20 in A4 Stainless
WF57026 - expected in 17 to 26 days
single washer for £4.98
or box of 5 for £17.20
or bulk of 25 for £72.41
£0.00  
M20 Tab Washer to DIN 463 in A4 Stainless
WF66377 - 93 in stock
sachet of 2 for £1.95
or box of 50 for £18.20
or bulk of 250 for £76.63
£0.00  
M20 Washer for Wood Construction DIN 440 Type R in A4 Stainless
WF88359 - expected in 14 to 21 days
single washer for £5.01
or box of 6 for £18.70
or bulk of 30 for £75.22
£0.00  
single washer for £5.08
or box of 10 for £25.84
or bulk of 50 for £128.27
single washer for £5.13
or box of 6 for £19.47
or bulk of 30 for £77.82
single washer for £2.43
or box of 50 for £15.60
or bulk of 250 for £63.87
single washer for £2.10
or box of 80 for £21.14
or bulk of 400 for £85.18
single washer for £5.32
or box of 6 for £21.88
or bulk of 30 for £76.14
single washer for £6.72
or box of 4 for £20.22
or bulk of 20 for £84.58
single washer for £2.50
or box of 50 for £18.83
or bulk of 250 for £76.53
single washer for £3.30
or box of 15 for £18.93
or bulk of 75 for £75.90
single washer for £4.22
or box of 8 for £18.15
or bulk of 40 for £76.66
single washer for £2.28
or box of 50 for £14.72
or bulk of 250 for £60.32
single washer for £4.54
or box of 10 for £29.44
or bulk of 50 for £119.97
single washer for £4.98
or box of 5 for £17.20
or bulk of 25 for £72.41
sachet of 2 for £1.95
or box of 50 for £18.20
or bulk of 250 for £76.63
single washer for £5.01
or box of 6 for £18.70
or bulk of 30 for £75.22
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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