Factory Wholesale Double Ended threaded rods, Custom double thread bar with Technical Support & Free Sample
Load Reference for double end threaded rods of Various Specifications (Zinc-Plated Carbon Steel / Grade 8.8)
| Nominal Diameter |
Effective Cross-sectional Area (mm²) |
Ultimate Tensile Strength (kN) |
Recommended Safe Load (kgf) |
Remarks |
| M10 |
58 |
20 |
~130 |
Light-duty support and connecting components |
| M12 |
84 |
29 |
~190 |
Small Equipment, Adjustment Mechanisms |
| M16 |
157 |
54 |
~360 |
Medium-duty brackets, fixtures |
| M20 |
245 |
84 |
~560 |
Heavy-duty support, mechanical connection |
| M24 |
353 |
121 |
~810 |
Heavy-Duty Anchoring, Equipment Columns |
| M30 |
561 |
192 |
~1280 |
For Large-Scale Steel Structures and Bridges |
double end threaded rods Installation Methods
Horizontal Installation: The load consists primarily of radial and shear forces; consequently, the load-bearing capacity of the lead screw is more significantly influenced by the support units and guide rails.
Vertical Installation: The load is borne entirely by the axial components of the lead screw. Furthermore, factors such as impact and acceleration must be taken into account, necessitating a safety factor 1.5 times higher than that required for horizontal operating conditions.
Operating Speed: High-speed operation or frequent start-stop cycles will reduce fatigue life; therefore, the dynamic load rating must be adjusted based on the rotational speed.
