DIN 6921 Hex Head Flange Bolts
Product: DIN 6921 Hex Head Flange Bolts
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
Hexagonal flange bolts are fasteners composed of a hexagonal head, a flange plate and a screw rod.Our company specializes in the production of flange face bolts. The detection and testing methods of flange surface bolts include hardness test, tensile test, impact test, torque coefficient test, salt spray test, etc.
Pictures
Product drawing
Product Specification
Size | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M20 | |
P | 0.8 | 1 | 1|1.25 | 1|1.25|1.5 | 1|1.25|1.5|1.75 | 1|1.5|2 | 1|1.5|2 | 1.5|2|2.5 | |
e min | 8.71 | 10.95 | 14.26 | 16.5 | 17.62 | 19.86 | 23.15 | 29.87 | |
da max | 5.7 | 6.8 | 9.2 | 11.2 | 13.7 | 15.7 | 17.7 | 22.4 | |
dc max | 11.8 | 14.2 | 18 | 22.3 | 26.6 | 30.5 | 35 | 43 | |
ds | max | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 20 |
min | 4.82 | 5.82 | 7.78 | 9.78 | 11.73 | 13.73 | 15.73 | 19.67 | |
Lf max | 1.4 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | |
k max | 5.4 | 6.6 | 8.1 | 9.2 | 11.5 | 12.8 | 14.4 | 17.1 | |
s | max | 8 | 10 | 13 | 15 | 16 | 18 | 21 | 27 |
min | 7.78 | 9.78 | 12.73 | 14.73 | 15.73 | 17.73 | 20.67 | 26.67 | |
r min | 0.25 | 0.4 | 0.4 | 0.4 | 0.6 | 0.6 | 0.6 | 0.8 | |
Support customer customization | |||||||||
Some introduction about our company
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.
Testing Equipment
Jinan Star Fastener Company values product quality and has some quality inspection equipment like tensile testing machines, torque testers, metallographic microscopes, optical projectors, salt spray test chambers, and coating thickness gauges. They're used to test the tensile strength and elongation of fastener products and assess the mechanical properties. These equipments makes sure every stage from raw materials to finished products is strictly quality-controlled.
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.
Our service:
1.Professional technical support and after-sales service: Star has a professional technical support team to provide customers with comprehensive technical support and problem solving. This includes product use guidance, installation guidance, troubleshooting, etc., to ensure that customers can get timely help and support during use. At the same time, the manufacturer also provides after-sales services such as return and exchange, repair, etc. to solve problems encountered by customers during use.
2.Quality control and testing: Star pays attention to product quality control, and conducts strict quality control in all links from raw material procurement to production and processing, finished product inspection, etc. At the same time, the manufacturer is also equipped with advanced testing equipment to conduct strict testing of the products to ensure that the products meet the relevant standards and customer requirements.
FAQ
1.How do you make me trust you?
We have self-operated import and export rights, and our products are exported to Australia, Japan, Germany and other countries. At the same time, we maintain friendly long-term cooperative relationships with various manufacturers.
2. What is your price?
High quality products and reasonable prices. Please send me an inquiry and I will quote the price immediately for your reference.
3. How do you control your quality?
We require QC to inspect every production link of each batch of goods. We can provide you with MTC and factory certificate after the goods are completed.
4. Can you provide free samples?
For new customers, we can provide standard fastener samples for free, but customers will pay
Courier fees. For old customers, we will send you samples for free and pay the express fee ourselves.
