AS 1390 Cup Head Bolts with ISO Metric Coarse Pitch Threads
Product: AS 1390 Cup Head Bolts with ISO Metric Coarse Pitch Threads
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
Export country: USA, Japan, Australia, Europe and so on
Support customer customization
AS 1390 Round Head Square Neck Carriage Hitch (also known as Round Head Square Neck Bolt) is a special fastener with a semicircular head and square neck. The round head design makes the head of this bolt semicircular, which is convenient for tightening with tools such as pliers or wrenches. At the same time, this head shape also makes it difficult to hook other objects, increasing the convenience and safety of use. The square neck is another significant feature of the round head square neck bolt. The square neck design prevents the bolt from turning with the nut when tightened, thus providing a better fixing effect.
Pictures
Product drawing
Product Specification
Size | M5 | M6 | M8 | M10 | M12 | M16 | M20 | M24 | |
P | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2.5 | 3 | |
dk | max | 11.25 | 13.5 | 18 | 22.5 | 27 | 36 | 45 | 54 |
min | 11.14 | 12.4 | 16.9 | 21.2 | 25.7 | 34.4 | 43.4 | 52.1 | |
dsmax | 5.48 | 6.48 | 8.58 | 10.58 | 12.7 | 16.7 | 20.84 | 24.84 | |
k | max | 3.1 | 3.6 | 4.8 | 5.8 | 6.8 | 8.9 | 10.9 | 13.1 |
min | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | |
k1 | max | 3.1 | 3.6 | 4.8 | 5.8 | 6.8 | 8.9 | 10.9 | 13.1 |
min | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | |
s | max | 5.48 | 6.48 | 8.58 | 10.58 | 12.7 | 16.7 | 20.84 | 24.84 |
min | 4.52 | 5.52 | 7.42 | 9.42 | 11.3 | 15.3 | 19.16 | 23.16 | |
r | max | 0.4 | 0.5 | 0.8 | 0.8 | 1.2 | 1.2 | 1.6 | 1.6 |
min | 0.2 | 0.25 | 0.4 | 0.4 | 0.6 | 0.6 | 0.8 | 0.8 | |
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.
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.
Workshop
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
FAQ
1: What are the main features and advantages of carriage bolts?
Answer: The main feature of carriage bolts is their semi-circular head and square neck design. Bolts with this design are not easy to rotate when tightened, and the consolidation and fixing effect is good. In addition, carriage bolts also have high strength and durability to ensure the stability and safety of the connection.
2: Application scenarios of carriage bolts?
Answer: Carriage bolts are widely used in occasions that require medium and low speed connections, such as automobiles, semi-trailer connection points, bridges, etc. In addition, because their heads are smooth and not easy to hook other objects, carriage bolts are also commonly used in agricultural machinery feet, wall panels and other occasions.
Service
1. Provide a product catalog and specification parameters of carriage bolts that meet the AS1390 standard to help customers understand the performance and application range of the product. 2. If the customer's needs are special, the manufacturer can provide customized production services according to the AS1390 standard and produce according to the specifications and requirements provided by the customer. Provide personalized design services, such as changing the head shape and size of the carriage bolt to meet the special needs of customers. Sample provision and testing services:
3. Provide carriage bolt samples that meet the AS1390 standard for customers to try and evaluate to ensure that the product meets the customer's expectations and requirements. 4. Provide technical support and after-sales service to answer questions and doubts encountered by customers during use. 5. If necessary, provide customers with training on the AS1390 standard, the use and maintenance of carriage bolts to improve customers' understanding and operation capabilities of the product. 6. Supply chain management services. Assist customers in supply chain management, ensure the timely supply and sufficient inventory of carriage bolts, provide inventory warnings and replenishment suggestions, and help customers reduce inventory costs and risks. 7. Environmental protection and sustainability. Provide carriage bolt products that meet environmental protection requirements and pay attention to the sustainable development of products.
