ASME B18.2.1 is the standard that covers square head bolts, which are also known as carriage bolts. These bolts are designed with a square head and a square neck, providing a secure connection when tightened with a nut. They are commonly used in various applications where a reliable and sturdy fastening solution is needed.
Material: including carbon steel, alloy steel, stainless steel (such as 304, 316, 316L, etc.) and other materials, the specific selection depends on the working environment and application requirements.
Grade: The product grade is different mechanical properties grade (such as 4.8 grade, 8.8 grade, 10.9 grade,A2-70, etc.), these grades reflect the tensile strength, yield strength and other mechanical properties of the bolt. Different grades are suitable for different load bearing requirements and working environments.
Advantage:
Prevention of Rotation: The square neck under the head prevents the bolt from rotating when a nut is tightened, ensuring a secure fit.Versatility: Suitable for a wide range of applications, including construction, automotive, and machinery.Easy Installation: The square head allows for easy installation with a wrench or socket.Corrosion Resistance: Often made from stainless steel (304/316), these bolts offer excellent resistance to rust and corrosion, making them suitable for outdoor use.Load Distribution: The square neck helps distribute the load evenly, reducing the risk of damage to the connected parts.
Scope of
application
Construction: Used in building structures where a secure connection is required.Automotive Industry: Employed in the assembly of vehicles where a flush finish and secure fastening are needed.Machinery and Equipment: Used in machinery frames and equipment where a secure and adjustable connection is needed.Solar Mounting Systems: Utilized in solar panel mounting systems for securing panels to racks or structures.Furniture and Display Systems: Ideal for use in systems that require frequent assembly and disassembly.Railroad and Automotive Industry: They are essential for fastening tracks, plates, and rail components in the railroad sector, and for engine assembly, chassis construction, and other critical connections in the automotive industry.Marine Applications: Square head bolts made of stainless steel, brass, or bronze are extensively used in marine applications due to their corrosion-resistant properties, ensuring the longevity and reliability of structures, fittings, and equipment exposed to saltwater and harsh marine environments.Historic Restoration: These bolts offer an authentic look in restoration projects or constructions aiming for a traditional or historical aesthetic, helping to maintain the charm of historical buildings.
Quality
Certification
Hebei Bentley is ISO9001:2015 certified and equipped with relevant certificates for quality assurance. Due to its specific dimensions and performance levels, it is suitable for a wide range of industrial and commercial scenarios including, but not limited to: machine building, construction work, transport, energy industry, timber frame connections.
inspection
Bentley has invested a huge amount of money to builda product testing laboratory, equipped with importedhigh-end instruments:such as thread comprehensivescanners, high temperature tensile testing machines,high frequency fatigue testing machines, etc., to ensurethat all products are strictly tested before leaving thewarehouse to ensure the reliability of customers duringuse.
