GB5782 and DIN931 hexagonal half-thread bolts are two common fasteners that follow the Chinese National Standard (GB) and the German Industrial Standard (DIN), respectively.They have a hexagonal head and a half-thread design, which means that one part of the length of the bolt is threaded while the other part is a bare stem.
They are available in a variety of performance grades, including 4.8, 8.8, 10.9, 12.9, A2-70,A2-80,A4-70 etc. to meet different strength and corrosion resistance requirements.In addition to Hexagonal half-tooth bolt grade 8.8, they have other grades such as 4.8, 6.8 , 10.9, and 12.9.
Material-wise, these bolts can be manufactured from a wide range of materials such as carbon steel 45#, stainless steel 304 316, etc. to meet the needs of different working environments.
Advantage:
Standardisation: adherence to international or national standards ensures interchangeability and consistency of bolts.
Cost Effectiveness: Half tooth design may reduce material usage compared to full tooth bolts in some applications, thus reducing costs.
Installation Flexibility: Half tooth sections allow for installation in specific space or depth constraints, increasing flexibility of use.
High strength and corrosion resistance: Depending on the material (e.g. stainless steel), excellent strength and corrosion resistance can be provided.
Scope of
application
GB5782 and DIN931 hexagonal half tooth bolts are widely used in machinery manufacturing, automotive industry, aerospace, electronic equipment, construction engineering and other fields.
It is suitable for occasions that require high strength connection but have requirements for installation space or depth.
Especially in occasions where the exposed length of the bolt needs to be precisely controlled or where interference between the full tooth part and the surrounding structure needs to be avoided.
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.
