Metric Round Head Bolt
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
Metric round head bolts refer to round head bolts whose specifications, sizes or shapes do not conform to metric standards (such as ISO, DIN, etc.). Metric round head bolts can be classified according to different stress states, construction processes or other characteristics. Metric round head bolts are often used in occasions with special connection or fixing requirements, such as steel structure engineering, automobiles, motorcycles, ships and other mechanical equipment, as well as electronics, instrumentation, home appliances and other industries. In these fields, metric round head bolts are used to connect complex parts and play a fixing and supporting role. Compared with standard bolts, non-standard metric round head bolts have more flexible specifications and size options to meet different connection needs.
Pictures
Product drawing
Product Specification
Size | M10 | M12 | M16 | M20 | M22 | M24 | |||||||
P | 1.5 | 1.75 | 2.0 | 2.5 | 2.5 | 3.0 | |||||||
A | 20 | 24 | 30 | 34 | 42 | 42 | |||||||
C | min | 8.9 | 10.72 | 14.58 | 18.22 | 20.22 | 22.22 | ||||||
max | 9.1 | 10.85 | 14.70 | 18.34 | 20.35 | 22.35 | |||||||
H | 6.0 | 8 | 10 | 12.5 | 14 | 16 | |||||||
I | 40 | 45 | 50 | 60 | 70 | 60 | 70 | 100 | 100 | 120 | 160 | 80 | |
L | 51 | 57 | 60 | 70 | 89 | 76 | 89 | 120 | 120 | 140 | 181 | 102 | |
O | 13.5 | 17 | 20 | 27 | 31 | 31 | |||||||
P | 5 | 7 | 8 | 10 | 12 | 14 | |||||||
Ra | 13.1 | 16 | 19.5 | 26 | 30 | 30 | |||||||
v | 9.5 | 12.7 | 16 | 20 | 20 | 24 | |||||||
Rb | 10.5 | 13.3 | 16.2 | 20.7 | 22.8 | 21.8 | |||||||
Rc | 0.5 | 0.5 | 1.0 | 1.0 | 1.0 | 1.0 | |||||||
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.
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.
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.
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.
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.
Packing
Service
1. Regarding the delivery time of customized products, the manufacturer will give a clear answer based on the actual situation.
2. In order to ensure the quality of non-standard metric round head bolts, manufacturers will conduct strict quality inspections on the produced non-standard metric round head bolts, including dimensional measurement, material analysis, tensile testing, etc., and can provide corresponding quality inspection reports.
3. Provide technical support for non-standard metric round head bolts, including product selection, installation guidance, use suggestions, etc., to help customers better understand and use the products.
4. According to the specific needs of customers, we provide customized services for non-standard metric round head bolts with different specifications, materials, surface treatments, etc. If there are special size or shape requirements, the manufacturer can produce them according to drawings or samples.
FAQ
1. Can I customize non-standard metric round head bolts with certain specifications?
Yes, we can provide customization services of non-standard metric round head bolts. Please provide your specific needs, such as size, material, surface treatment requirements, etc., and we will provide customized solutions and quotations as soon as possible.
2.How do you guarantee the quality of non-standard metric round head bolts?
We produce strictly in accordance with relevant standards and conduct strict quality inspections on our products. We can provide quality inspection reports to ensure product quality meets your requirements.
3. How is the price of non-standard metric round head bolts calculated?
The price of non-standard metric round head bolts mainly depends on product specifications, materials, quantity and other factors. We will give you a reasonable quotation based on your specific needs.
4. I need to receive the product as soon as possible. What is your delivery time?
Answer: We will arrange production and delivery as soon as possible based on your specific needs. Generally, lead times for custom products will vary based on production complexity and order volume. We will keep in touch with you to ensure you receive the product in time.
5. What should I do if there are problems with non-standard metric round head bolts during use?
Answer: We provide comprehensive after-sales service. If there are problems with the product during use, please contact us in time. We will provide you with solutions and technical support as soon as possible.
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