About Bolts And Nuts
We provide comprehensive American (such as ANSI/ASME B18.2.1 standard) flange bolts and nuts and metric (such as GB5787/ GB5789 / DIN6921) flange bolts and nuts, as well as customized services to produce bolts and nuts with special specifications and materials according to customer needs.
Bolts and nuts with their unique flange design, increase contact area, disperse stress, prevent loosening, and protect the connected parts. They are widely used in fields such as automotive manufacturing, mechanical manufacturing, construction engineering, pipeline connections, and power equipment. Compared with other bolts and nuts, this kind of bolts and nuts is more convenient to install and have higher stability, making them an ideal choice for high-strength and critical connection applications. Through reasonable material selection and surface treatment, bolts and nuts can provide reliable connection solutions under various harsh conditions.
Structure and characteristics of bolts and nuts
Bolt head: The head of a flange bolt is usually hexagonal, making it easy to install and remove using a wrench.
Flange: Immediately following the bolt head is a wide flange. The bottom surface of a flange usually has radial patterns or tooth-shaped designs to increase friction.
Threaded rod: The threaded part below the flange is used to match with the nut and provide a secure connection.
Characteristics
Increasing contact area: The design of the flange increases the contact area between bolts and nuts and the connected part, disperses pressure, and reduces the risk of damage and deformation.
Anti-loosening design: The pattern or tooth shaped design at the bottom of the flange increases friction, effectively preventing bolts from loosening in vibration environments.
Easy installation: The flange bolts and nuts do not require washers, simplifying the installation process and improving construction efficiency.
Distributed stress: The flange increases the contact area between bolts and nuts head and the connected part, which can more evenly distribute stress and prevent damage caused by local stress concentration.
Anti-loosening: The pattern or tooth design at the bottom of the bolts and nuts can increase friction and effectively prevent bolts from loosening in vibration or impact environments.
Protecting the connected parts: bolts and nuts can reduce the indentation and damage of bolts and nuts on the surface of the connected parts, especially on softer materials such as wood or plastic.
The difference between bolts and nuts and other bolts and nuts
Compare hexagonal bolts and nuts
Gaskets are needed to increase contact area and prevent loosening.
Compare carriage bolts
The head is hexagonal with a flange, which is more suitable for metal connections that require high strength and anti-loosening.
The head is circular, which is suitable for woodworking and occasions that require single-sided operation.
The main applications of bolts and nuts
Automobile Manufacturing
Engine and chassis: it is used as the connection point between automotive engines and chassis, capable of withstanding high-intensity and vibration environments.
Body structure: Provide strong and reliable connections at key connection points of the body structure.
Mechanical Manufacturing
Heavy machinery: In heavy machinery equipment, it is used for high-strength connection parts such as bearing seats, frames, etc.
Industrial equipment: It is used to fix and install key components of industrial equipment to ensure stable operation of the equipment.
Construction engineering
Steel structure: In steel structure buildings, it is used for connecting beams and columns, providing high strength and stability.
Bridge construction: In bridge construction, it is used for critical connection parts to withstand enormous tensile and shear forces.
Pipeline connection
Flange connection: In pipeline systems, flange bolts and nuts are used to secure flanges and achieve a sealed connection of pipelines.
Oil and gas transportation: In oil and gas transportation pipelines, it is used as critical connection points to ensure the sealing and safety of the pipeline.
Electrical Equipment
Transformers and switchgear: Used as the connection point between transformers and switchgear to ensure the safe and stable operation of power equipment.
Cable tray: It is used to fix cable trays and provide stable and reliable connections.
