GB32.1 Hexagon head bolts with holes are specially designed fasteners with wire holes (usually two through holes) in the head for connecting two or more bolts through wire ropes or other fixings to enhance anti-loosening performance. They are available in a wide range of sizes from M6 to M48 and are suitable for use in a wide variety of mechanical equipment and engineering structures. They are available in a wide range of materials, including stainless steel, special alloys, carbon steel, etc., to meet different environments and strength requirements.
Materials：
45#(carbon steel)0195(carbon steel) 304 316 40Cr(alloy steel) 35CrMo(alloy steel)316L 20MnTiB(alloy steel2205 Titanium Ta2 35K(carbon steel)10B21(carbon steel) SCM440(alloy steel) PVC Q235(carbon steel) 304ProTC4(titanium alloy)
Performance class：grade4.8 8.8 10.9 12.9
Unique advantages of GB32.1 Excellent anti-loosening performance: connecting bolt head holes through wire rope or other fixings, effectively preventing bolts from loosening due to vibration or other external forces.
Strong adaptability: Various specifications and material choices can meet the needs of different equipment and engineering structures.
Convenient installation: the design with holes makes the installation process more flexible and convenient, and improves work efficiency. Safe and reliable
Scope of
application
Machinery and equipment: In machinery and equipment, GB32.1 bolts with holes are commonly used in key connection parts that require high strength and anti-loosening performance, such as engines, transmission systems, heavy equipment and so on.
Construction engineering: in the field of construction engineering, this kind of bolts can be used in steel structures, bridges, towers and other structures that need precise fixing and long-term stability.
Transportation: GB32.1 bolts with holes are also widely used in all kinds of connectors and fixings in railway, highway, ships and other means of transport.
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.
