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Lewei Hardware is a company with 20 years of experience in producing non standard hardware parts and standard fasteners.

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Custom Bolt Manufacturer Chinasupply-1

Inquiry
Customized
DIN603
HS Code
731815090
Origin
China
Transport Package
Plastic Bag+ Carton+Wood Pallet
Application
Machinery, Building, Photovoltaic,Car,Railway

Product details of the custom bolt manufacturer


Product Specification

Application: Machinery, Building, Photovoltaic,Car,Railway

Origin: China

Transport Package: Plastic Bag+ Carton+Wood Pallet

Customized: DIN603

HS Code: 731815090


Quick Detail

Lewei Hardware custom bolt manufacturer follows the measures and procedures of production. This product has reliable quality and stable performance. The custom bolt manufacturer produced by our company is widely used in various industries and fields. Under reasonable management, the service team of Lewei Hardware has been working orderly to provide the best service.


Product Introduction

Compared with similar products on the market, the custom bolt manufacturer of Lewei Hardware has the following advantages.

Premium Quality Carriage Bolts 

Our HDG Grade 5, Grade 8 Carriage Bolts feature a square neck bolt and round head bolt design, allowing for secure fastening in machinery, chemical industry, building and more. With a variety of finishes including zinc plated, black oxide, nickel, chrome, and hot-dipped galvanized, these bolts are available in sizes ranging from 1/2"-1 1/2", and made from high-quality materials such as carbon steel, alloy steel, stainless steel, and brass. Get all your fastening needs met in one place with our one-stop shopping, high-quality, and competitively priced bolts for timely delivery and reliable performance.

● HDG Grade 5 Carriage Bolts

● Grade 8 Carriage Bolts

● Square Neck Bolts

● Round Head Bolts

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High Tensile Strength and Durability

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product advantages 1
Our HDG Grade 5 and Grade 8 Carriage Bolts feature a square neck and round head design, ensuring a secure and reliable fastening solution for your projects.
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product advantages 2
With hot-dip galvanized coating, these bolts offer enhanced corrosion resistance, making them ideal for outdoor and marine applications.
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product advantages 3
The high-quality construction of these bolts guarantees strength and durability, providing peace of mind for all your heavy-duty fastening needs.
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Superior Strength, Secure Fastening

Manufactured in compliance with ASME/ANSI B 18.5, DIN603, DIN608 standards, our HDG Grade 5, Grade 8 Carriage Bolts come in sizes ranging from 1/2"-1 1/2", M12-M36 and are available in carbon steel, alloy steel, stainless steel, and brass materials. With thread options including UNC and UNF, and finish options such as plain, zinc plated, black oxide, nickel, and chrome, our carriage bolts are perfect for use in machinery, chemical industry, and other applications. Rest assured of high quality, competitive prices, and timely delivery with our over 10 years of experience in the fasteners industry. With a supply ability of 1000 tons per month, we are dedicated to meeting your needs.

◎ Durable

◎ Strong

◎ Versatile

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Material Introduction

Our HDG Grade 5 and Grade 8 Carriage Bolts are manufactured using high-quality carbon steel, alloy steel, stainless steel, or brass. These durable materials ensure the bolts are suitable for use in machinery, chemical industry, environmental applications, building, and highway guardrail hardware. The HDG Grade 5 and Grade 8 Carriage Bolts come in a variety of finishes such as plain, zinc-plated (clear/blue/yellow/black), black oxide, nickel, and chrome, making them versatile for different applications. With the use of top-of-the-line equipment and strict quality control measures, we guarantee high-quality, durable bolts for various industrial and construction needs.

◎ Grade 5 Carriage Bolts 

◎ Grade 8 Carriage Bolts

◎ HDG Square Neck Bolt

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Application Scenario

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Solar Energy
Custom non-standard big round head bolts can be used to secure components in industrial machinery, providing a reliable fastening solution for heavy-duty applications.
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Oil & Gas
These bolts are ideal for use in home appliances such as refrigerators, washers, and dryers, ensuring a secure and safe fastening solution for critical components.
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Railroads
Manufacturers of HVAC systems can use these custom bolts to secure electrical components and ensure the safety and reliability of their products.
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Tower & Pole
These custom non-standard big round head bolts are ideal for use in automotive electronics, providing a secure fastening solution for critical components in vehicles.
建筑
Metal Buliding
木箱
Wooden box pallet
室内
Home Decorating & Furniture
机械
Tractor Parts & farmm

FAQ

1
What are HDG Grade 5, Grade 8 Carriage Bolts?
HDG Grade 5, Grade 8 Carriage Bolts are heavy-duty bolts with a square neck under the head to prevent turning during installation. They are available in both square neck and round head designs.
2
What are the differences between Grade 5 and Grade 8 Carriage Bolts?
Grade 5 carriage bolts are made of medium carbon steel and are commonly used in construction and machinery. Grade 8 carriage bolts are made of alloy steel and are heat-treated for extra strength, making them suitable for heavy-duty applications such as in automotive and aerospace industries.
3
What are some common applications for HDG Grade 5, Grade 8 Carriage Bolts?
These bolts are commonly used in wood-to-wood and wood-to-metal construction, as well as in the assembly of heavy machinery and equipment.
4
Can these carriage bolts be used outdoors?
Yes, the hot-dip galvanized (HDG) coating on these bolts provides corrosion resistance, making them suitable for outdoor and marine applications.
5
Are these bolts easy to install?
Yes, the square neck design of carriage bolts prevents them from turning during installation, making them easier and more secure to install compared to regular bolts.
6
Can these bolts be used for structural applications?
Yes, Grade 5 and Grade 8 carriage bolts are suitable for structural applications where a strong and reliable fastener is required. However, it is important to ensure that the appropriate grade and size are selected for the specific structural requirements.


Company Advantages

Haiyan Lewei hardware & tool co., Ltd. is a modern company mainly engaged in R&D, production and sales. CNC Machining Parts,Bolts,Nuts,Screws,Locating Pin,Stamping parts are key products. Looking into the future, Lewei Hardware will continue to give play to our talents and technological advantages. We will further enhance our core competitiveness and deepen the reformation of industrial integration. We strive to become a leading company with a large influence in the industry. Lewei Hardware's highly educated team provides a solid foundation for the development. Lewei Hardware is dedicated to providing professional, efficient and economical solutions for customers, so as to meet customers' needs to the greatest extent.
The products we produced are of high quality and reasonable price. If needed, please contact us!

Contact us
we welcome custom designs and ideas and is able to cater to the specific requirements. for more information, please visit the website or contact us directly with questions or inquiries.
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General Manager: Vivi Gao 
Tel: 0086-18966356433
       0086-18969177261
Website: www.lewei-hardware.com
Address: Building 29, No.4567 Hangzhouwan Avenue, Xitangqiao Street, Haiyan County, Zhejiang Province, China
Copyright © 2025 Haiyan Lewei Hardware & Tool Co., Ltd. | Sitemap | Privacy
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