Overview

Metric washers - Form A

DIN 125 

BS 4320 A  

Materials and Finishes:  

Steel/Zinc & clear 

Stainless steel/Self colour 

Brass/Self colour

Please note that other finishes are available on request.

Note: Due to the fact that fastening applications differ greatly, the below information is for guidance only and is correct to the best of our knowledge. The customer must satisfy themselves with the performance of the fastener and validity of the data. TR Fastenings will not be held responsible for any failure that may occur from the use of this information.

Dimension data
For metric screwsd nomD noms nom
M1.6*1.740.3
M1.7*1.84.50.3
M22.250.3
M2.3*2.560.5
M2.52.760.5
M2.6*2.870.5
M33.270.5
M3.5*3.780.5
M44.390.8
M55.3101
M66.4121.6
M7*7.4141.6
M88.4161.6
M1010.5202
M1213242.5
M1415282.5
M1617303
M18*19343
M20*21373
M22*23393
M24*25444
M27*28504
M30*31564
M33*34605
M36*37665
M39*40726

* - Non preferred

Preferred range
Preferred Range
ThreadMaterial
M3ST  A2  A4  BR  NY
M3.5ST  A2  BR
M4ST  A2  A4  BR  NY
M5ST  A2  A4  BR  NY
M6ST  A2  A4  BR  NY
M8ST  A2  A4  BR  NY
M10ST  A2  A4  BR  NY
M12ST  A2  A4  BR  NY
M14ST
M16ST  A2  A4  NY
M18ST
M20ST  A2  A4
M24ST

ST - Steel, Zinc and Clear

A2 - A2 Stainless Steel, Self Colour

A4 - A4 Stainless Steel, Self Colour

BR - Brass, Self Colour

NY - Nylon, Self Colour

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