Your Professional Double Head Bolt Supplier
Haiyan Huashen Auto Parts Technology Co., Ltd. is located in Jiaxing, Zhejiang—a standard parts distribution center with convenient transportation and logistics. Our company has strong technical capabilities and specializes in producing various specifications and types of flange bolts, non-standard parts, nuts, hex bolts, double-headed bolts, barrel clamp bolts, and other related products.
Why Choose Us
Design and Customization with Innovative Technology
We have a professional design team that supports development based on customer drawings and samples. Customers can provide drawings or specific requirements, and our team will quickly respond with customized solutions to meet unique needs. Using CAE simulation analysis to evaluate the structure before forming parts helps predict the design's feasibility, shortens the development cycle, reduces trial-and-error costs, and ensures product performance and quality.
High-Quality Materials and Excellent Craftsmanship
We carefully select and process materials according to performance requirements. With exquisite craftsmanship and refined production processes, we pursue perfection in every detail to ensure customers receive high-quality products.
Strict Quality Control with Full Traceability
Our company is equipped with advanced testing equipment and enforces strict quality control at every stage of production. Multiple inspections ensure product quality before leaving the factory. We implement batch management and record incoming material numbers for traceability. This improves management efficiency and provides customers with reliable quality assurance.
Worry-Free After-Sales Service
Customer satisfaction is our top priority. We offer comprehensive after-sales services, including product consultation, technical support, and maintenance. We are committed to providing timely and professional assistance, firmly believing that customer satisfaction represents our greatest success.
This Custom Double End Stud Bolt are custom made according to customer drawing or requirement, generally it has a stage on the neck. It’s generally made of carbon steel and stainless steel. It can pass over 24 hours salt spray test or more depending on specific requirements from customers. It’s widely applied in industries like automotive, machine parts, construction etc.
Double End Studs Specification Format
|
Product name |
Stainless Steel Double Ended Stud |
|
Standard |
DIN931, ISO 4017, DIN, GB5783, ANSI, ASTM, EN, JIS, AS |
|
DIN Standard |
B.S., DIN931, DIN933, DIN934, DIN603, DIN912, DIN6923 |
|
Place of Origin |
India |
|
Surface treatment |
Plain/ Passivation |
|
Finishing |
Hop Dip Galvanized (HDG) phosphorization, Zinc Plated (Yellow, White, Blue, Black), Geomet, Black Oxide, anodization, Dacroment, Zinc-Nickel plated, Nickel plated, Tin Plated, Brass Plated, Copper Plated, Black Plated, Salt fog test, Gold Plated |
|
Size of |
M2 – M100 |
|
Diameter of |
M3-M60 |
|
Length of |
6mm-500mm |
|
Head |
Square, Hex, Hex flange, Round, T-head , Flat & Triangular etc |
|
Neck type |
Square, Hex, Oval, Triangular & Knurled etc |
|
Drive type |
Slotted, Phil, Torx , Hex socket, & square slot etc |
|
Application of |
Nuclear power, Wind tower, Automotive industry, Railway, Electronic, Construction industry, |
|
Dimensions |
ASME B18.6.3 *Exception: screws 6 inches and shorter are fully threaded. |
|
Drive Style |
Type I |
|
Material of |
Stainless steel ss 304/ SS316 A2/A4, 18-8 Stainless Steel, SS303, SS201, SS316, SS304, SS904L, SS316L, A4-70; A2-70; A4-80 |
|
Thread Requirements |
UNC & UNF, ASME B1.1, Class 2A (Fastenal will inspect and accept parts with a 1A no-go gauge) |
|
Finish |
Per ASTM A380/A380M |
|
Production technology |
Cold Forged |
|
Manufacturing Process |
Cold Heading, Wire Drawing, Heat Treatment, Insert tapping, Inspection, Packing, Surface Plating |
|
Surface treatment of |
Electroplating (color, blue, white, black zinc, Ni, Cr, tin, copper, silver) Hot-dip galvanizing Rust preventive oil Sand blasting Passivation Anodizing Black oxide coating Polish Heat-disposing |
|
Others |
OEM, ODM, ±0.03MM tolerance |
|
Coatings |
Cadmium, Black Oxide, Teflon, Galvanized, Zinc, Xylan, Others Upon Request |
|
Tolerance of |
+/-0.01mm to +/-0.05mm |
Common Fastener Materials
|
Stainless Steel |
Zinc-plated Steel |
Hot-dipped Galvanized Steel |
Chrome and Nickel Plated Steel |
Brass and Bronze |
Alloy Steel |
|
Stainless steel offers good corrosion resistance, making it suitable for outdoor use and marine applications, but is more |
Zinc-plated steel is a low carbon steel for general use. Relatively inexpensive, with the zinc plating providing moderate |
Hot-dipped galvanized steel has a thicker zinc coating for better corrosion resistance, making it suitable for outdoor use. |
Chrome and nickel plated steel are smooth and polished for appearance. The plating offers moderate corrosion resistance. |
Brass and bronze are copper alloys with good corrosion resistance. More expensive than steel, these materials are typically used |
Alloy steel is highly hardened and usually black oxide and/or oil coated, offering little corrosion resistance. |
• When the thickness of the connecting body is large and the length of the bolt is long, double-headed bolts are used.
• Double-head bolts are used to connect thick plates and places where it is inconvenient to use hexagonal bolts, such as concrete roof frames, roof beams hanging monorail beams suspension parts, etc.
• In large-scale main equipment, some connectors need to be frequently disassembled, the external thread is easily damaged, then the application of double-headed bolts will be more convenient to disassemble and replace.
Product packaging
Internal packing
The plastic bag is packaged and features an information label containing the product number, specifications, detailed dimensions, weight, date, and other essential details.
Outer packing
The cartons are packaged with a label indicating the contents and quantity of the items inside.
Palletized
The goods are palletized and labeled with shipping marks specifying product identifiers and handling requirements.
FAQ
We're well-known as one of the leading double head bolt manufacturers and suppliers in China. Please feel free to wholesale customized double head bolt made in China here from our factory. For quotation, contact us now.
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