GB-T 5786 Hexagon Head Bolts-Fine Pitch Thread
Product: GB-T 5786 Hexagon Head Bolts-Fine Pitch Thread-Full Thread
Property Class:4.6,4.8,5.6,5.8,8.8,10.9,12.9,
A2-70, A4-70,A4-80
Finish:Zinc Plating（Yellow Zinc, Zinc Blue, Rinse Color), Black, Phosphate & Oil, Zinc Phosphate, Hot-dip Galvanized(HDG),Dacromet, Geomet
Material:Steel,Stainless
Export country: USA, Japan, Australia, Europe and so on
Support customer customization
GB/T 5786 fully threaded fine thread hexagon head bolt is a fastener designed and manufactured in accordance with Chinese national standard GB/T 5786-2016. GB-T 5786 fully threaded fine thread hexagon head bolt is suitable for bolts with thread diameter d between 8mm and 64mm, fine thread and full thread. Surface treatments may include treatments such as blackening to improve the bolt's corrosion resistance. GB/T 5786 fully threaded fine thread hexagon head bolts have high performance and reliability, but they still need to be selected and used according to actual needs and conditions in specific applications.
Pictures
Product drawing
Product Specification
Size | M8 | M10 | M12 | M14 | M16 | M18 | M20 | M22 | M24 | M27 | M30 | M33 | M36 | M39 | M42 | M45 | M48 | M52 | M56 | M60 | M64 | |
P | 1.0 | 1|1.25 | 1|1.25|1.5 | 1|1.5 | 1|1.5 | 1.5|2 | 1.5|2 | 1.5|2 | 1.5|2 | 1.5|2 | 1.5|2 | 1.5|2 | 1.5|2|3 | 1.5|2|3 | 1.5|2|3|4 | 1.5|2|3|4 | 1.5|2|3|4 | 1.5|2|3|4 | 1.5|2|3|4 | 1.5|2|3|4 | 1.5|2|3|4 | |
da max | 9.2 | 11.2 | 13.7 | 15.7 | 17.7 | 20.2 | 22.4 | 24.4 | 26.4 | 30.4 | 33.4 | 36.4 | 39.4 | 42.4 | 45.6 | 48.6 | 52.6 | 56.6 | 63.0 | 67.0 | 71.0 | |
e min | 14.38 | 17.77 | 20.03 | 23.36 | 26.75 | 30.14 | 33.53 | 37.72 | 39.98 | 45.2 | 50.85 | 55.37 | 60.79 | 66.44 | 71.3 | 76.95 | 82.6 | 88.25 | 93.56 | 99.21 | 104.86 | |
k | max | 5.45 | 6.58 | 7.68 | 8.98 | 10.18 | 11.715 | 12.715 | 14.215 | 15.215 | 17.35 | 19.12 | 21.42 | 22.92 | 25.42 | 26.42 | 28.42 | 30.42 | 33.5 | 35.5 | 38.5 | 40.5 |
min | 5.15 | 6.22 | 7.32 | 8.62 | 9.82 | 11.285 | 12.285 | 13.785 | 14.785 | 16.65 | 18.28 | 20.58 | 22.08 | 24.58 | 25.58 | 27.58 | 29.58 | 32.5 | 34.5 | 37.5 | 39.5 | |
r min | 0.4 | 0.4 | 0.6 | 0.6 | 0.6 | 0.6 | 0.8 | 0.8 | 0.8 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.2 | 1.2 | 1.6 | 1.6 | 2.0 | 2.0 | 2.0 | |
s | max | 13.0 | 16.0 | 18.0 | 21.0 | 24.0 | 27.0 | 30.0 | 34.0 | 36.0 | 41.0 | 46.0 | 50.0 | 55.0 | 60.0 | 65.0 | 70.0 | 75.0 | 80.0 | 85.0 | 90.0 | 95.0 |
min | 12.73 | 15.73 | 17.73 | 20.67 | 23.67 | 26.67 | 29.67 | 33.38 | 35.38 | 40.0 | 45.0 | 49.0 | 53.8 | 58.8 | 63.1 | 68.1 | 73.1 | 78.1 | 82.8 | 87.8 | 92.8 | |
Support customer customization | ||||||||||||||||||||||
Some introduction about our company
Application
Our products are widely used in mechanical, electrical, automotive, building construction, railways, bridges, steamships, fire protection and communication system, etc.
Workshop
Certification
Through scientific management, Jinan Star Fastener Co., Ltd. has obtained the 2015 version of ISO9001 quality management system certification. In 2017, the laboratory passed the national CNAS certification. In 2018, the company passed the European CE certification.
Testing Equipment
Our company has a specialized laboratory with digital hardness testers, microscopes, universal testing machines, axial force meters, hydrogen embrittlement detection devices, magnetic particle flaw detectors, metallographic analyzers, carbon and sulfur analyzers and salt spray testing machines, etc. Experimental testing equipment is used to conduct comprehensive testing of the chemical composition of raw materials, product hardness, mechanical properties, coating thickness and corrosion resistance to ensure that all products meet standard requirements and satisfy customers.
Production equipment
Our company has more than 300 production equipment.The product production process includes: Annealing, shot blasting, cold heading, thread rolling, heat treatment, galvanizing, finished product testing, packaging, etc. are all completed in the company.
Packing
Service
1. Provide fully threaded fine thread hexagonal head bolts that comply with GB/T 5786 standards.
2. Produce non-standard hexagonal head bolts according to customers' special needs.
3. Assist customers to select appropriate specifications, grades and surface treatments for GB/T 5786 fully threaded fine thread hexagon head bolts.
4. Deliver goods on time to ensure that customers can receive GB/T 5786 full thread fine thread hexagonal head bolt products in time.
5. Continuously improve the product and service quality of GB/T 5786 fully threaded fine thread hexagon head bolts to meet your needs.
FAQ
1. What is the difference between GB/T 5786 fully threaded fine thread hexagon head bolts and ordinary bolts?
Answer: GB/T 5786 fully threaded fine thread hexagon head bolts have the characteristics of full thread and fine thread. Fully threaded bolts have threads along their entire length, whereas fine-thread bolts have threads that are spaced closer together. GB/T 5786 fully threaded fine thread hexagon head bolts have better performance when subjected to tension and torque, especially in applications requiring high tightening force and vibration resistance.
2. How to choose the appropriate specification and grade of GB/T 5786 fully threaded fine thread hexagon head bolts?
Answer: From multiple perspectives such as the thickness of the connection material, the load it bears, and the use environment, it is recommended that customers provide detailed usage scenarios and requirements. Jinan Star’s sales technicians will assist you in making selections and recommendations.
3.What are the surface treatment options for GB/T 5786 fully threaded fine thread hexagon head bolts?
Answer: blackening, galvanizing, special coating, etc. Which surface treatment you choose depends on your usage environment and requirements. Jinan Star can provide different surface treatment options according to customer needs.
