| Nominal diameter of bolt, d |
| mm |
|
| Unthreaded length of bolt, LUT |
| mm |
| X-section area of threaded portion of bolt, AT |
| mm2 |
| Modulus of elasticity of bolt, Eb |
| 109N/m2 |
| Thickness of each washer, tw |
| mm |
| Diameter of each washer, D |
| mm |
| Thickness of member #1, t1 |
| mm |
| Modulus of elasticity of member #1, E1 |
| 109N/m2 |
| Thickness of member #2, t2 |
| mm |
| Modulus of elasticity of member #2, E2 |
| 109N/m2 |
| Cone angle of frustrum, α |
| ° |
| STIFFNESS |
Values | Units |
| ♦ Unthreaded portion of bolt, kUT |
780.37 | 106N/m |
| ♦ Threaded portion of bolt, kT |
1163.34 | 106N/m |
| ♦ Overall stiffness of bolt, kbolt |
467.06 | 106N/m |
| ♦ Stiffness of frustum #1, k1 |
4470.14 | 106N/m |
| ♦ Stiffness of middle frustum, km |
57472.8 | 106N/m |
| ♦ Stiffness of frustum #2, k2 |
2281.15 | 106N/m |
| ♦ Overall stiffness of frusta, kmembers |
1471.71 | 106N/m |