| Diameter of bolt | Tensile stress area | Slip resistance | |||||||
|---|---|---|---|---|---|---|---|---|---|
| μ = 0.2 | μ = 0.3 | μ = 0.4 | μ = 0.5 | ||||||
| d | As | Single shear | Double shear | Single shear | Double shear | Single shear | Double shear | Single shear | Double shear |
| mm | mm2 | kN | kN | kN | kN | kN | kN | kN | kN |
| 12 | 84.3 | 7.55 | 15.1 | 11.3 | 22.7 | 15.1 | 30.2 | 18.9 | 37.8 |
| 16 | 157 | 14.1 | 28.1 | 21.1 | 42.2 | 28.1 | 56.3 | 35.2 | 70.3 |
| 20 | 245 | 22.0 | 43.9 | 32.9 | 65.9 | 43.9 | 87.8 | 54.9 | 110 |
| 24 | 353 | 31.6 | 63.3 | 47.4 | 94.9 | 63.3 | 127 | 79.1 | 158 |
| 30 | 561 | 50.3 | 101 | 75.4 | 151 | 101 | 201 | 126 | 251 |
For Class 8.8 and 10.9 M12 bolts the design shear resistance Fv,Rd has been calculated as 0.85 times the value given in BS EN 1993-1-8, Table 3.4 (§3.6.1(5))
See Clause 3.7(1) of BS EN 1993-1-8: 2005 for calculation of the design resistance of a group of fasteners
Bearing resistances may be taken from the tables for non-preloaded bolts
The shear resistances are ULS values
The slip resistances are SLS values
Values have been calculated assuming ks = 1. See BS EN 1993-1-8, Section 3.9 for other values of ks