Hexagonal internal expansion bolts combine the high strength of a hexagonal bolt with the convenience of an expansion bolt. They usually consist of a hex head, a threaded rod and an expansion tube. The expansion tube is usually designed with a cutout that unfolds inside the wall when the bolt is screwed in place, providing a secure fixing.
Stainless Steel (304/316): Offers superior corrosion resistance and is suitable for moist or corrosive environments. The 316 grade has additional molybdenum, providing even better corrosion resistance, especially in marine applications.
Carbon Steel: Provides good strength and is the most common material for bolts. It may require additional surface treatments like galvanizing for increased corrosion resistance.
Alloy Steel: Offers enhanced strength and durability. It is often used in high-stress applications where high tensile strength is required.
Advantage:
HIGH STRENGTH: The hexagonal head design provides greater torque carrying capacity for high load applications.
Quick Installation: Expansion bolts are quick and easy to install, improving construction efficiency.
Wide applicability: Suitable for a wide range of materials, including concrete, brick and wood.
Corrosion resistance: Some models are made of stainless steel, making them suitable for wet or corrosive environments.
Adjustability and reusability: Expansion bolts can be adjusted for tightening strength and can be easily removed after loosening, making it easy to repair and replace equipment.
Scope of Application
Building structure fixing: used to fix windows, door frames, brackets and other building components. Machinery and equipment installation: fixing machine bases, pipes and other equipment to ensure their stability and safety. Furnishing and decorating: for fixing decorations on plasterboard walls, hanging objects and installing furniture, etc. Electrical and plumbing systems: fixing wire channels, pipes and fittings. Outdoor applications: for outdoor environments such as fixing guardrails, signage and other outdoor structures.
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.
Quality 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.
