Tapfix screws (DIN7500) - Torsional data

Metric Threads

 
Screw dia. Screw pitch Length max. Torsional Strength (Nm)     Assembly torque (Nm)
M2 0.4 10 0.6     0.39
M2.5 0.45 15 1.2     0.78
M3 0.5 18 2.1     1.36
M3.5 0.6 21 3.4     2.21
M4 0.7 24 4.9     3.18
M5 0.8 38 10     6.5
M6 1 38 17     11
M8 1.25 38 42     27.3
M10 1.5 38 85     55.25
M12 1.75 38 150     97.5
 

Inch Threads

 
Screw dia. Screw pitch Length max. Torsional Strength (lbf in)     Assembly torque( lbf.in *lbf.ft)
2 56 5/8" 6.7     4.35
4 40 3/4" 16     10.4
6 32 7/8" 24     15.6
8 32 1 52     33.8
10 24 1 1/4" 65     42.25
10 32 1 1/4" 81     52.65
1/4" 20 1 1/2" 176     114.4
5/16" 18 1 1/2" 340     221
3/8" 16 1 1/2" 620     403
7/16" 14 1 1/2" 950     617.5
1/2" 13 1 1/2" 1450     942.5

 



Note: Due to the fact that fastening applications differ greatly, the above 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.