Do high-strength fasteners such as screws, bolts, nuts, bolts, and non-standard customized installations need to be coated with lubricant?
In mechanical installation or construction engineering, the correct use of high-strength fasteners such as screws, bolts, nuts, bolts, and non-standard customization directly affects structural safety. Manufacturers of composite components - Whether lubricant needs to be applied during installation should be comprehensively judged based on the types, working conditions, and technical specifications of fasteners such as screws, bolts, nuts, and bolts, as well as non-standard customization.
Non standard custom manufacturers - The main function of lubricants is to reduce thread friction, making it easier for fasteners such as screws, nuts, bolts, and non-standard custom to achieve the preset torque value during the tightening process. For ordinary fasteners, lubricants can prevent threads from biting or rusting.
Non standard customized manufacturers - but the design intention of high-strength fasteners such as screws, bolts, nuts, bolts, and non-standard customized bolts (such as 8.8 grade and above bolts) is to ensure connection reliabilhttps://www.haiyanbolts.com/ity through high pre tightening force, and the friction coefficient itself is a key parameter for torque calculation. Manufacturers of composite components - if lubricants are added arbitrarily, it may cause the pre tightening force to exceed the design range, and instead pose a risk of bolt elongation or even fracture.
Non standard customized manufacturers - When high-strength fasteners such as screws, bolts, nuts, bolts, and non-standard customized fasteners are used in corrosive environments (such as chemical equipment and offshore platforms), a small amount of anti rust lubricant can be applied to the threaded parts, but the torque value needs to be adjusted synchronously.
Non standard custom manufacturers - some pin, stamping&welding parts, washers, and screw manufacturers will explicitly require the use of specialized lubricants in their product descriptions, and must follow the guidance at this time. Assembly manufacturer - If the installation standard does not mention lubricants, it is usually recommended to keep the threads dry and only clean the surface oil stains or impurities.
Non standard custom manufacturers - Before installing high-strength fastener pins, stamped and welded parts, washers, and screws, it is necessary to check whether the threads are intact to avoid using damaged parts. Assembly manufacturer - If lubrication is required, a lubricant compatible with the material (such as molybdenum disulfide) should be selected, and the dosage should be strictly controlled.
Non standard custom manufacturers - it is recommended to use a torque wrench when tightening, apply force evenly in stages, and avoid tightening in place in a single step. Component manufacturers - After installation, it is necessary to regularly inspect the status of fasteners, pins, stamped and welded parts, washers, and screws, especially in environments with high vibration or temperature differences.
There is no unified requirement for lubricants for non-standard custom manufacturers of high-strength fastener pins, stamped parts&welded parts, washers, and screws, and it needs to be determined based on specific scenarios and specifications. Manufacturers of composite components - blind addition may pose safety hazards, while complete non use may affect corrosion resistance performance.
Composite component manufacturers - In practical operation, priority should be given to referring to technical documents or consulting professionals to ensure that fasteners, pins, stamped parts&welded parts, washers, and screws meet mechanical requirements and have long-term stability.
