Page 170 - 德国Projahn2022

Technical data

Comparative table Spanner width tolerances Comparative table
Thread to wrench size (WS) Extract from DIN 475 Part 2 Inch to Metric

Thread (norm. series) WS Nominal size min. max. Inch Metric (Ca. values)
M2 4 3.5 3.52 3.60 5/16“ 7.938
M2.5 5 4* 4.02 4.12 3/8“ 9.525
M3 5.5 4.5 4.52 4.62 7/16“ 11.113
5* 5.02 5.12 1/2“ 12.700
M4 7 5.5* 5.52 5.62 9/16“ 14.288
M5 8 6* 6.03 6.15 5/8“ 15.875
M6 10 7* 7.03 7.15 11/16“ 17.463
8* 8.03 8.15 3/4“ 19.050
M8 13 9* 9.03 9.15
M10 17 (16) 10* 10.04 10.19 13/16“ 20.638
M12 19 (18) 11* 11.04 11.19 7/8“ 22.225
12* 12.04 12.24 15/16“ 23.813
M14 21 (22) 13* 13.04 13.24 1“ 25.400
M16 24 14* 14.05 14.27 1 1/16“ 26.987
M18 27 15* 15.05 15.27 1 1/8“ 28.575
16* 16.05 16.27 1 1/4“ 31.750
M20 30 17* 17.05 17.30
M22 32 (34) 18* 18.05 18.30 1/64“ 0.397
M24 36 19* 19.06 19.36 1/32 0.794
20* 20.06 20.36 3/64“ 1.191
M27 41 21* 21.06 21.36 1/16“ 1.588
M30 46 22* 22.06 22.36 5/64“ 1.984
M33 50 23* 23.06 23.36 3/32“ 2.381
24* 24.06 24.36 1/8“ 3.175
M36 55 25* 25.06 25.36 3/16“ 4.763
M39 60 26* 26.08 26.48 1/4“ 6.350
M42 65 27* 27.08 27.48 1 1/64“ 25.797
28* 28.08 28.48 1 1/32“ 26.194
M45 70 30* 30.08 30.48 1 3/64“ 26.591
M48 75 32* 32.08 32.48 1 5/64“ 27.384
M52 80 34* 34.10 34.60 1 3/32“ 27.781
36* 36.10 36.60 1 3/16“ 30.162
41* 41.10 41.60 1 5/16“ 33.337
46* 46.10 46.60 1 3/8“ 34.925
50* 50.10 50.60 1 7/16“ 36.512
55* 55.12 55.72 1 1/2“ 38.100
60* 60.12 60.72 1 9/16“ 39.687
65* 65.12 65.72 1 5/8“ 41.275
70* 70.12 70.72 1 11/16“ 42.862
75* 75.15 75.85 1 3/4“ 44.450
80* 80.15 80.85 1 13/16“ 46.037
1 7/8“ 47.625
1 15/16“ 49.212
2“ 50.800
2 1/4“ 57.150
2 1/2“ 63.500
2 3/4“ 69.850

The spanner widths marked with * correspond to international standards.The width across flats 6, 9, 12, 14, 17, 19, 20, 22, 23, 25,
26, 28 and 32 are bracketed in DIN ISO 691 and marked as transition values.

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