BUMAX® stainless steel Taptite (DIN7500) Screws

 
Hole sizes. torque and forces for Taptite
  Material thickness Dimensions
M3 M4 M5 M6 M8 M10
0.1-1.5 2.70 3.65        
1.51-2.5 2.80 3.65 4.60 5.5    
2.51-4 2.80 3.70 4.70 5.6 7.5 9.3
4.01-6.5 2.85 3.75 4.70 5.6 7.5 9.3
6.51-10   3.80 4.75 5.65 7.6 9.4
10.01-15       5.7 7.7 9.5
15.01-20         7.7 9.6
Breaking torque in Nm min BUMAX® hard  4.5 7.9 13 20 30 52
Standard TT 2.2 3.8 7.8 13 32 45
Tightening torque Mv i Nm BUMAX® hard  1.3 3 6 12 25 49
Standard TT 1.2 2.7 5.4 9.3 22 40
 

The Mv recommendations refer to burr-free surfaces lubricated with a good quality lubricant.

The Mv-recommendations are calculated assuming a coefficient of friction of 0.16 that requires a good-quality lubricant.