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.

productcate-750-500

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.

productcate-750-500

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.

productcate-750-500

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.

productcate-750-500

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.

 

First 1234 Last 1/4

Bolts Overview

 

productcate-800-420

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.

Get Detailed Product Specifications

 

 

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.

https://www.chinaboltnut.com/bolts/socket-head-cap-screws/din-912-class-4-8-socket-head-cap-screw.html

 

 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

 

01/

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.

02/

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.

productcate-1-1

 

 

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

 

productcate-960-540
Title
productcate-960-540
Title
productcate-960-540
Title
productcate-960-540
Title

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

 

Custom Bolts
 

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.

productcate-727-506

Why Choose Our Bolts

 

productcate-750-500

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.

whatsapp

Phone

E-mail

Inquiry

Bag