Bolts

ASTM A307 Grade A Carbon Steel Double End Stud Bolts, 60 ksi Minimum Tensile Strength


QBH manufactures ASTM A307 Grade A carbon steel double end stud bolts for general industrial and mechanical fastening applications.

Backed by our specialized manufacturing base in Ningbo, China, we focus on precision bolt and threaded rod production. We offer a wide range of diameters, lengths, and thread configurations to meet diverse engineering requirements.

Customization is Our Strength: With drawing-based manufacturing and flexible production options, we supply custom double end stud bolts with tailored dimensions and surface finishes (Plain, Zinc Plated, HDG). Contact us today to discuss your specific project needs.

QBH manufactures ASTM A307 Grade A carbon steel double end stud bolts for general industrial and mechanical fastening applications.

Backed by our specialized manufacturing base in Ningbo, China, we focus on precision bolt and threaded rod production. We offer a wide range of diameters, lengths, and thread configurations to meet diverse engineering requirements.

Customization is Our Strength: With drawing-based manufacturing and flexible production options, we supply custom double end stud bolts with tailored dimensions and surface finishes (Plain, Zinc Plated, HDG). Contact us today to discuss your specific project needs.


Product Details

Product Specifications

Place of Origin

CHINA

Standard

ASTM A307

HS CODE

7318159001

Brand Name

QBH

Certification

ISO9001

Material

Carbon Steel

Size

1/4"–4",Custom Sizes Available

Production Process

According to product specifications

Class

Grade A

Delivery Time

Within 30Days

Product Introduction

ASTM A307 Grade A Double End Stud Bolts are made from carbon steel and designed for general-purpose fastening applications. With threaded ends on both sides and a plain shank in the middle, they are commonly used to connect and secure mechanical components, equipment and structural parts.

QBH supplies carbon steel double end stud bolts in different diameters, lengths and thread configurations. Both equal-length and unequal-length threaded ends can be produced according to application requirements. Inch sizes are available for ASTM A307 Grade A applications, while custom dimensions can also be manufactured to customer specifications.

With a manufacturing base in Ningbo, China, QBH specializes in bolt and threaded rod production. We support drawing-based customization and can supply different surface finishes to meet project and application requirements.

 

Material & Mechanical Properties

ASTM A307 Grade A double end stud bolts are manufactured from carbon steel and have a minimum tensile strength of 60 ksi (414 MPa). They are intended for general-purpose fastening applications and are supplied in accordance with the applicable material and mechanical requirements of ASTM A307.

Property Specification
Product Standard ASTM A307
Grade Grade A
Material Carbon Steel
Minimum Tensile Strength 60 ksi (414 MPa)
Product Type Double End Stud Bolts
Surface Finish Plain, Black Oxide, Zinc Plated, Hot-Dip Galvanized, and other finishes upon request

Dimensional Specifications & Thread

QBH supplies ASTM A307 Grade A double end stud bolts in a range of diameters and lengths. Standard inch sizes are available, and thread lengths, shank lengths and overall dimensions can be customized according to drawings or project specifications.

Item Specification
Standard ASTM A307 Grade A
Nominal Diameter 1/4"–4"
Thread System Inch Thread
Thread Type As specified
Length Custom lengths available
Thread Configuration Equal or unequal thread lengths
Shank Plain shank
Dimensional Specification ASME B18.31.2, where applicable
Customization Available according to drawings and requirements

Applications

ASTM A307 Grade A double end stud bolts are used in general industrial and mechanical fastening applications. Their double-ended threaded design allows components to be secured with nuts at both ends or installed into threaded holes, depending on the assembly requirements.

Typical applications include:

General machinery and equipment.

Industrial equipment assembly.

Mechanical connections.

Construction equipment.

General-purpose fastening applications.

 

Product Specifications

Place of Origin

CHINA

Standard

ASTM A307

HS CODE

7318159001

Brand Name

QBH

Certification

ISO9001

Material

Carbon Steel

Size

1/4"–4",Custom Sizes Available

Production Process

According to product specifications

Class

Grade A

Delivery Time

Within 30Days

Product Introduction

ASTM A307 Grade A Double End Stud Bolts are made from carbon steel and designed for general-purpose fastening applications. With threaded ends on both sides and a plain shank in the middle, they are commonly used to connect and secure mechanical components, equipment and structural parts.

QBH supplies carbon steel double end stud bolts in different diameters, lengths and thread configurations. Both equal-length and unequal-length threaded ends can be produced according to application requirements. Inch sizes are available for ASTM A307 Grade A applications, while custom dimensions can also be manufactured to customer specifications.

With a manufacturing base in Ningbo, China, QBH specializes in bolt and threaded rod production. We support drawing-based customization and can supply different surface finishes to meet project and application requirements.

 

Material & Mechanical Properties

ASTM A307 Grade A double end stud bolts are manufactured from carbon steel and have a minimum tensile strength of 60 ksi (414 MPa). They are intended for general-purpose fastening applications and are supplied in accordance with the applicable material and mechanical requirements of ASTM A307.

Property Specification
Product Standard ASTM A307
Grade Grade A
Material Carbon Steel
Minimum Tensile Strength 60 ksi (414 MPa)
Product Type Double End Stud Bolts
Surface Finish Plain, Black Oxide, Zinc Plated, Hot-Dip Galvanized, and other finishes upon request

Dimensional Specifications & Thread

QBH supplies ASTM A307 Grade A double end stud bolts in a range of diameters and lengths. Standard inch sizes are available, and thread lengths, shank lengths and overall dimensions can be customized according to drawings or project specifications.

Item Specification
Standard ASTM A307 Grade A
Nominal Diameter 1/4"–4"
Thread System Inch Thread
Thread Type As specified
Length Custom lengths available
Thread Configuration Equal or unequal thread lengths
Shank Plain shank
Dimensional Specification ASME B18.31.2, where applicable
Customization Available according to drawings and requirements

Applications

ASTM A307 Grade A double end stud bolts are used in general industrial and mechanical fastening applications. Their double-ended threaded design allows components to be secured with nuts at both ends or installed into threaded holes, depending on the assembly requirements.

Typical applications include:

General machinery and equipment.

Industrial equipment assembly.

Mechanical connections.

Construction equipment.

General-purpose fastening applications.

 

FAQ

1. How do you let me trust you.

Jiaxing City Qunbang Hardware Co.,ltd hs its own right of import and export,QBH trademark in China,United States,European Union have been registered.At the same time,you can also check the registration information of our company in the China industry and Commerce system.

 

2. How about your price.

We will be based on different markets,for different quality and quantity,tailor-made prices for customers,in order to achieve win-win goal.

 

3. How do you control your quality.

Incoming quality contral( IQC)→Process Quality control(PQC)→Output quality control(OQC),and the random samples is sent to TUV for testing.If the customer received the goods and found quality problems,QBH company promises to be responsible for returning money or replenishing the goods

 

4. Could you provide free samples?

For new customer, We can provide free samples for standard fastener, But the clients will pay the express

charges. For old customer, We will send you free samples and pay express charges by ourself.

 

5. What is your packing.

Usually 25KG/carbon,36CTNS on the pallets,or 20-30kg/Bags,then on the pallet,QBH company personalized packagingis also available,like 10PCS/plastic bag or 10pcs/box,it can print some information

such as LOGO and pattern of customers.

 

6. What is your payment term

Normally,our terms of payment are TT and L/C,if we cooperate for a long time,we can reach the point of mutual trust,and fully support our customers to become bigger and stronger in the local market.Not only in the price concessions,but also in the payment can also be made on credit,Specific credit sales time needs to be negotiated separately.

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