AS 1390 ISO Metric Cup Head Bolts With Coarse Pitch Threads
Product: AS 1390 ISO Metric Cup Head Bolts With 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 ISO metric coarse pitch cup head bolts (also known as round head square neck bolts) are special fasteners with a semicircular head and a square neck. The round head design makes the head of this bolt semi-circular, making it easier to tighten with tools such as pliers or wrenches. At the same time, this head shape also makes it difficult to hook onto other objects, increasing the convenience and safety of use. The square neck is another distinguishing feature of round head square neck bolts. The square neck design prevents the bolt from rotating with the nut when tightened, providing better retention.
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 | |
ds max | 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
Jinan Star Company specializes in the production of fastener products. Our bolts, nuts and other products are widely used in machinery, railways, automobiles, construction, electrical, bridges, communications, firefighting and other industries.
Workshop
The workshop of Jinan Star Fastener Co., Ltd. is the core area of the company's production and manufacturing, with advanced production equipment. The reasonable layout of the workshop and the scientific production process ensure the efficient production and high-quality output of fastener products.
Certification
Jinan Star Fastener Co., Ltd. has obtained the 2015 version of ISO9001 quality management system certification through the scientific management of leaders of various departments and the pursuit of high quality for bolts and other fasteners. In addition, the laboratory owned by Star Company has obtained the certification in 2017. It passed the national CNAS certification in 2018, and the company passed the European CE certification in 2018.
Production equipment
In order to meet the needs of different customers, the company has introduced a series of advanced production equipment, such as multi-station cold heading machines, thread rolling equipment, heat treatment equipment, shot blasting machines, sand blasting machines, electroplating lines and other surface treatment equipment, and fully automatic packaging equipment. These equipment not only improve production efficiency, but also ensure the consistency and stability of product quality.
Testing Equipment
Jinan Star Fastener Company attaches great importance to product quality and is equipped with complete quality inspection equipment, such as tensile testing machines, torque testers,metallographic microscopes, optical projectors, salt spray test chambers, coating thickness gauges, etc., which are used to test the tensile strength and elongation of fastener products and evaluate the mechanical properties of products. These equipment ensure that every link from raw materials to finished products can be strictly controlled in quality.
Packing
FAQ
1: What are the main features and advantages of carriage bolts?
A: The main feature of carriage bolts is their semicircular head and square neck design. Bolts with this design are not easy to rotate when tightened, and have good consolidation and fixing effects. In addition, carriage bolts have high strength and durability, ensuring the stability and safety of the connection.
2: What are the application scenarios of carriage bolts?
A: 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 has special needs, 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 shape and size of the carriage bolt head 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 customer expectations and requirements.
4. Provide technical support and after-sales service to answer questions and concerns encountered by customers during use.
5. If necessary, provide customers with training on AS1390 standards, carriage bolt use and maintenance to improve customers' understanding and operation capabilities of the product.
6. Supply chain management services. Assist customers in supply chain management, ensure 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 focus on the sustainable development of products.
