Product Name | Zinc plated carbon steel hex socket shoulder bolt |
Material | Carbon steel,Iron,Stainless steel ,Brass copper,Alumilum,Zinc Alloy,Bronze |
Specificatio | Including and over M2, the length according to customer's requirements. |
Manufacture Process | Cold forge heading/Secondary machine/Clamping/Threading/Surface treatment/(Automatic) testing/(Automatic) Packing/Shipping |
Surface finishing | Zn-plated,Ni-plated,Passivated,H.D.G.(hot dip galvanizing),Chromate,Chorm plated,Blackoxide, Polish,Plain,Coppercoated,bronze plating,Dacromet,anodic oxidation etc. |
Standard | ISO,GB,DIN,JIS,ANSI,BSW,IFI |
Grade | 4.8Â 6.8Â 8.8Â 10.9Â 12.9 |
Brand | Tai Feng |
Thread | coarse, fine |
Quality authentication | ISO 9001:2015, ISO/TS16949:2009, over 10 patents, the national high-tech enterprises. |
Used | building industry machinery ,furniture |

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Company showÂ
RUIAN HANGXIN FRASTENERS FACTORY
(Qingdao Hengfei trade Co., Ltd)
Ruian hangxin fasteners factory was founded in 2001, located in Ruian City, Zhejiang Province. We specializing in the production of nuts, bolts, screws, washers. Our factory occupies more than 50 acres and employs more than 200 people.Â
In China, we have long-term and stable cooperation with Haier Group, Beijing Automotive Group and SGMW WuLing Group. Till now, we have exported to Europe, United States, Russia, Southeast Asia, the Middle East, Africa and so on.Â
We imported foreign advanced technology and equipment, now We have 18 multi-station cold heading machines, 38 automatic double-head tapping machines and 5Â automatic punching machines. 6Â automatic CNC lathes, 2Â sets of multi-station cleaning anti-rust oil, 2Â sets of infrared camera finished products, 4Â sets of bolt reeling machines, etc.Â
We have export office in Qingdao, named qingdao hengfei trade Co., Ltd. Welcome to visit our factory. We will provide good quality productsAnd good service to you!Â
Warehouse show
Packing in carton box or according to customers requirement
certificateÂ

Q: Are you trading company or manufacturer?Â
A: We are factory.Â
And we are the independent foreign trade department in Qingdao City.Â
Q: How long is your delivery time?Â
A: Generally it is 5-10 days if the goods are in stock. Or it is 15-20 days if the goods are not in stock, it is according to quantity.Â
Q: Do you provide samples? Is it free or extra?Â
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.Â
Product Name | Zinc plated carbon steel hex socket shoulder bolt |
Material | Carbon steel,Iron,Stainless steel ,Brass copper,Alumilum,Zinc Alloy,Bronze |
Specificatio | Including and over M2, the length according to customer's requirements. |
Manufacture Process | Cold forge heading/Secondary machine/Clamping/Threading/Surface treatment/(Automatic) testing/(Automatic) Packing/Shipping |
Surface finishing | Zn-plated,Ni-plated,Passivated,H.D.G.(hot dip galvanizing),Chromate,Chorm plated,Blackoxide, Polish,Plain,Coppercoated,bronze plating,Dacromet,anodic oxidation etc. |
Standard | ISO,GB,DIN,JIS,ANSI,BSW,IFI |
Grade | 4.8Â 6.8Â 8.8Â 10.9Â 12.9 |
Brand | Tai Feng |
Thread | coarse, fine |
Quality authentication | ISO 9001:2015, ISO/TS16949:2009, over 10 patents, the national high-tech enterprises. |
Used | building industry machinery ,furniture |

Â
Company showÂ
RUIAN HANGXIN FRASTENERS FACTORY
(Qingdao Hengfei trade Co., Ltd)
Ruian hangxin fasteners factory was founded in 2001, located in Ruian City, Zhejiang Province. We specializing in the production of nuts, bolts, screws, washers. Our factory occupies more than 50 acres and employs more than 200 people.Â
In China, we have long-term and stable cooperation with Haier Group, Beijing Automotive Group and SGMW WuLing Group. Till now, we have exported to Europe, United States, Russia, Southeast Asia, the Middle East, Africa and so on.Â
We imported foreign advanced technology and equipment, now We have 18 multi-station cold heading machines, 38 automatic double-head tapping machines and 5Â automatic punching machines. 6Â automatic CNC lathes, 2Â sets of multi-station cleaning anti-rust oil, 2Â sets of infrared camera finished products, 4Â sets of bolt reeling machines, etc.Â
We have export office in Qingdao, named qingdao hengfei trade Co., Ltd. Welcome to visit our factory. We will provide good quality productsAnd good service to you!Â
Warehouse show
Packing in carton box or according to customers requirement
certificateÂ

Q: Are you trading company or manufacturer?Â
A: We are factory.Â
And we are the independent foreign trade department in Qingdao City.Â
Q: How long is your delivery time?Â
A: Generally it is 5-10 days if the goods are in stock. Or it is 15-20 days if the goods are not in stock, it is according to quantity.Â
Q: Do you provide samples? Is it free or extra?Â
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.Â
CNC turning is a subtractive manufacturing process in which pieces of material are rotated as a machine tool is fed to the piece, removing material to create a finished piece. It is primarily used to manufacture parts that are cylindrical in nature. We supply custom cnc turning service and CNC turning parts manufacturing
What is CNC TURNING?
Items processed by a lathe will be cylindrical and must be on-centre. Turned parts can range from simple rings to complex curved components. CNC turning is the most efficient way to mass-produce these kinds of parts.
Various cutting tools can be installed within the lathe tooling head to perform different cutting operations sequentially, to produce parts in a one-pass process. Straight cuts, tapers and contours can all be created by varying the angle and depth of the cut.
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