Thread Content
1. Product quality: The surface should be free of rust, oil stains, burrs on the walls of nut holes, and welds; after treatment of the surfaces in contact with friction, they must meet the requirements regarding the scratch resistance coefficient. The high-strength hot-dip galvanized bolts used shall be accompanied by matching bolts and washers, which must be used together and must not be interchanged; during installation, the treated friction surfaces of the components must not be contaminated with oil, soil, or other debris; the friction surfaces of the components must remain dry during installation, and work must not be carried out in rain; the friction surfaces of the components must stay dry throughout the installation process. Before installation, the deformation of the connected steel plates must be carefully checked and corrected; during installation, it is strictly prohibited to hit the nuts, as this may damage their threads. When in use, please regularly check the electric wrench to ensure the accuracy of torque, and proceed according to the correct tightening sequence. 2. Install safety technology: 1. The opening size of the wrench used to tighten should match the size of the nut; it is not advisable to use a small wrench with a sleeve. Fixed wrenches should be used when working at heights. If using an adjustable wrench, it should be secured with a rope and a safety belt should be worn. When installing the connection bolts of steel structural members, it is strictly prohibited to insert them into the connection surface or to probe the threaded holes with hands. When picking up and placing the shimming plate, the fingers should be placed on both sides of it. The above issues must be taken into account during the installation of hot-dip galvanized bolts to avoid unnecessary troubles.