Overview

Metric tooth lock washers - Type A

DIN 6797  

Materials and Finishes:  

Steel/Zinc & clear 

Stainless steel/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 screws (1)d minD maxsNo. teeth min
M1.61.73.60.36
M22.24.50.36
M2.52.75.50.46
M2.6* (2)2.85.50.46
M33.260.46
M3.5*3.770.56
M44.380.58
M5 (2)(3)5.190.58
M5*5.390.68
M66.4100.78
M77.412.50.88
M8 (2)(3)8.212.50.88
M8*8.4140.88
M1010.5180.99
M12 (2)(3)12.518110
M121320.5110
M141524110
M1617261.212
M18*19301.412
M20*21331.412
M22*23361.514
M24*25381.514
M27*28441.614
M30*31481.614
 

1 - These are for guidance only. DIN standard only states washer diameters 

2 - Not listed in DIN Standard 

3 - For hexagon head bolts only 

* Non preferred

Preferred range
Preferred Range
ThreadMaterial
M4ST  A2
M5ST  A2
M6ST  A2
M8ST  A2
M10ST  A2
M12ST  A2

ST - Steel, Zinc and Clear De - Em

A2 - A2 Stainless Steel, Self Colour

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