Bolts
Team Introduction
Handan Jihao Fastener Manufacturing Co., Ltd. is a professional fastener manufacturer that integrates production, quality control, sales, and export services. With our proven manufacturing capabilities, extensive product line, and experience in international trade, we provide reliable fastener solutions to customers in the construction, machinery, automotive, and steel structure industries.

Comprehensive Product Range
We supply fasteners such as bolts, nuts, washers, studs, and anchor bolts, available in a variety of materials, strength grades, sizes, and custom specifications.

Quality Control
We strictly control the production process using professional testing equipment, and our products are manufactured in accordance with standards such as GB, DIN, ISO, and ANSI.

Stable Supply
With our own production facilities and proven manufacturing processes—covering cold heading, heat treatment, and surface treatment—we ensure a stable supply and reliable delivery.

Our Services
We provide one-stop services ranging from product selection, quoting, and production to inspection, packaging, shipping, and after-sales support, meeting the procurement needs of our overseas customers.
Bolts Overview

Bolts are widely used in the assembly of machinery, steel structures, equipment, foundations, and industrial components. Selecting the appropriate bolt depends on the application, load requirements, material, dimensions, operating environment, and applicable standards.
We offer a wide variety of bolts, including hex socket head cap screws, hex head bolts, anchor bolts, and structural bolts. Available materials include carbon steel, stainless steel, alloy steel, copper, and aluminum alloy. In addition to standard specifications, we can also provide custom bolts based on drawings, samples, dimensions, or specific application requirements.
Bolt Types
Hex Socket Cylinder Head Bolts
Hex socket cylinder head bolts feature a hex socket drive and a cylindrical head. These bolts are suitable for machinery and equipment assembly, as well as applications with limited installation space.
Hex Head Bolts
Hex head bolts have a hexagonal head and can be tightened using a standard wrench or a socket wrench. They are commonly used in machinery, equipment, construction, steel structures, and general industrial fastening applications.
https://www.chinaboltnut.com/bolts/hex-head-bolts/din-933-class-8-8-hex-bolt.html
Anchor Bolts
Anchor bolts are used to secure equipment, steel structures, columns, and other components to concrete foundations or other structural bases.
https://www.chinaboltnut.com/nuts/structural-nuts/anchor-nut.html
Structural Bolts
Structural bolts are used for structural connections where the fastening system must meet specific strength and dimensional requirements. They can be used in steel structures, construction projects, industrial facilities, and other load-bearing connections.
Bolt Materials
Different materials have their own advantages and disadvantages in terms of strength, corrosion resistance, weight, electrical conductivity, and cost. We can recommend the appropriate material based on your application and operating conditions.
|
Material |
Key Characteristics |
Typical Applications |
|
Carbon Steel |
Good strength and cost efficiency |
Machinery, construction, general fastening |
|
Stainless Steel |
Good corrosion resistance |
Outdoor equipment, industrial equipment, corrosive environments |
|
Alloy Steel |
High strength and mechanical performance |
Heavy-duty machinery and high-load connections |
|
Aluminum Alloy |
Lightweight and corrosion resistant |
Lightweight equipment and structural applications |
Bolt Specifications and Standards
Bolt Specifications
Please confirm the following specifications before purchasing bolts:
- Bolt diameter
- Bolt length
- Thread diameter and pitch
- Thread type
- Full-threaded or partial-threaded
- Head type
- Material
- Surface treatment
- Applicable standards
- Quantity
- Application Requirements
Providing complete specification details helps us recommend suitable standard products or develop customized solutions for you.
Bolt Standards
Depending on the product, bolts may be manufactured or supplied in accordance with applicable international or regional standards.
Common standards may include:
- ISO
- DIN (German Standard)
- ANSI/ASTM (U.S. Standard)
- JIS (Japanese Standard)
- GB/T 97
- GB/T 6170
- GB/T 6175
Standards should be specified along with the bolt type, dimensions, material, and grade to avoid compatibility issues during assembly.
Surface Treatment
Surface treatment affects a bolt’s corrosion resistance, appearance, and operating conditions. Depending on the bolt material and application, available surface treatments include:
- Zinc plating
- Hot-dip galvanizing
- Black oxide coating
- Passivation
- Other protective coatings
- Bare metal
For outdoor, humid, or corrosive environments, the surface treatment should be selected based on the base material and the anticipated operating conditions.

How to Select the Right Bolts
Selecting bolts involves more than just choosing the appropriate diameter and length; it also requires considering the complete fastening requirements.
①. Consider the Application
Determine where the bolts will be used, such as in machinery, steel structures, construction equipment, foundations, or industrial equipment.
②. Check Load Requirements
Consider the tensile forces, shear forces, vibrations, and other loads acting on the joint. High-load applications may require bolts of a specific strength grade or structural bolting systems.
③. Select the Material
Carbon steel, stainless steel, alloy steel, copper, and aluminum alloys have different mechanical properties and environmental characteristics. The material selection should match the operating conditions and required performance.
④. Confirm Dimensions and Threads
Diameter, length, pitch, thread type, and head size must be compatible with mating parts and installation tools.
⑤. Consider the Operating Environment
Outdoor, humid, marine, chemical, or other corrosive environments may require higher corrosion resistance and appropriate surface treatments.
⑥. Confirm Applicable Standards
Using the correct standards helps ensure compatibility with other components in the fastening system in terms of dimensions and mechanical properties.
Bolt Selection for Different Operating Conditions
|
Working Condition |
Main Considerations |
|
General Machinery |
Dimensions, thread compatibility, strength and cost |
|
Heavy-Duty Equipment |
Strength grade, load requirements and material |
|
Outdoor Applications |
Corrosion resistance and surface treatment |
|
Steel Structures |
Structural requirements, strength and applicable standards |
|
Concrete Foundations |
Anchor bolt type, dimensions and installation requirements |
|
Limited Installation Space |
Socket head design and tool access |
|
Corrosive Environments |
Material, coating and corrosion resistance |
|
Lightweight Equipment |
Weight, material strength and connection requirements |
Applications of Bolts




|
Application |
Typical Bolt Uses |
|
Construction |
Connecting structural components, equipment, brackets, and building components |
|
Steel Structures |
Connecting steel beams, columns, frames, and structural members |
|
Machinery & Equipment |
Fastening machine components, housings, frames, and mechanical assemblies |
|
Automotive |
Connecting vehicle components, chassis parts, engine-related assemblies, and brackets |
|
Industrial Equipment |
Equipment assembly, mounting components, and mechanical connections |
|
Agricultural Machinery |
Fastening machinery frames, working components, and equipment assemblies |
|
Electrical Equipment |
Securing equipment housings, supports, panels, and mechanical components |
|
Infrastructure |
Connecting structural and mechanical components in infrastructure projects |
|
Heavy Equipment |
High-load connections in construction, mining, material handling, and other heavy machinery |
|
Equipment Foundations |
Securing machinery, tanks, structural components, and equipment to concrete foundations |
about us
We supply standard bolts suitable for common industrial fastening needs and can also manufacture non-standard bolts according to customer specifications.
Custom bolt production can be based on the following:
- Technical drawings
- Samples
- Specified dimensions
- Required materials
- Strength grades
- Thread specifications
- Special head designs
- Surface treatment requirements
- Application requirements
For non-standard bolts, please provide as much detailed technical information as possible. Drawings or samples will help us more accurately confirm the required dimensions and production details.

Why Choose Our Bolts

We specialize in providing fastening products tailored to the actual needs of industrial buyers.
- A wide variety of bolt types and materials
- Standard and non-standard bolt options
- Customization based on drawings and samples
- Support for material and specification selection
- Solutions suitable for various operating conditions
- Flexible specifications for different applications
- Packaging and shipping options tailored to your order requirements
In addition to dimensions, please provide details about your application and technical requirements so we can help you find the right product.
FAQ
Q: Which standards do your products comply with?
A: ISO, DIN (German standards), ANSI/ASTM (U.S. standards), JIS (Japanese standards), GB/T 97, GB/T 6170, GB/T 6175, etc. For more details, please send us an email.
Q: What surface treatments do you offer?
A: Electrogalvanizing, hot-dip galvanizing, blackening, phosphating, stainless steel passivation, Dacromet, Jumeite, nickel plating, chrome plating, Teflon coating, and other surface treatments are available. We can also customize finishes according to your needs.
Q: What materials are your products made of?
A: Carbon steel, stainless steel, alloy steel, copper, and aluminum alloy. We can provide products suitable for your specific operating conditions.
Q: What is the minimum order quantity?
A: The minimum order quantity for standard parts is 100 kg or 1 metric ton; for custom-made products, it starts at 500 kg. These quantities are negotiable, and large-volume orders qualify for discounted prices and priority production. If you need specific quantities, please email us with your requirements.
Q: What is the production lead time?
A: Standard parts in stock are shipped within 3–7 days. Custom products are shipped within 10–20 days after receipt of prepayment (depending on quantity and complexity).
Q: What after-sales services do you offer?
A: We offer replacements or refunds for quality issues. We provide free guidance on product selection, compatibility, and installation. We track orders throughout the entire production and logistics process. Regular customers can reserve stock on hand and enjoy long-term discounts.
Q: Can you customize non-standard products?
A: Yes, we support comprehensive customization: dimensions, special materials and hardness levels, special surface treatments, and packaging. We can produce drawings and prototypes for your confirmation before mass production.
We're known as one of the most professional bolts manufacturers and suppliers in China. With abundant experience, we warmly welcome you to wholesale customized bolts made in China here from our factory. If you have any enquiry about cooperation, please feel free to email us.










