Overview

Metric washers - Form B

DIN 125 

BS 4320 B  

Materials and Finishes:  

Steel/Zinc & clear 

Stainless steel/Self colour 

Brass/Self colour

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
M2*2.250.3
M2.3*2.560.5
M2.5*2.76.50.5
M2.6*2.870.5
M33.270.5
M3.5*3.770.5
M44.390.8
M55.3100.8
M66.412.50.8
M7*7.4140.8
M88.4171.0
M1010.5211.25
M1213241.6
M14*15281.6
M1617302
M18*19342
M20*21372
M22*23392
M24*25442.5
M27*28502.5
M30*31562.5
M33*34603
M36*37663
M39*40723

* - Non preferred

Preferred range
Preferred Range
ThreadMaterial
M5ST  A2  BR
M6ST  A2  A4  BR
M8ST  A2  A4  BR
M10ST  A2  A4  BR
M12ST  A2  A4  BR
M16ST  A2  A4  BR
M20ST  A2  A4
M24A2  A4

ST - Steel, Self Colour/ Zinc and Clear

A2 - A2 Stainless Steel, Self Colour

A4 - A4 Stainless Steel, Self Colour

BR - Brass, Self Colour

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