Torque Table

STANDARD PARTS TIGHTENING TORQUE TABLE





1. The torques shown in the table are standard values applicable to tightening performed under the following conditions:
- Nuts and bolts are made of steel bar, and galvanized.
- Galvanized plain steel washers are inserted.
- All nuts, bolts, and plain washers are dry.
2. The torques shown in the table are not applicable:
- If spring washers, toothed washers and the like are inserted.
- If plastic parts are fastened.
- If self-tapping screws or self-locking nuts are used.
- If threads and surface are coated with oil.
3. It should be standard practice to reduce the torques given in the table to the percentage indicated below:
- If spring washers are used reduce torque by 85%.
- If threads and bearing surfaces are stained with oil reduce torque by 85%.