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ASME B18.31.2 Double-End Studs, SAE J429 Grade 8，Medium Carbon Alloy Steel
QBH manufactures ASME B18.31.2 double-end studs in SAE J429 Grade 8 Medium Carbon Alloy Steell for high-strength fastening applications. With our manufacturing base in Ningbo, China, we offer inch-thread sizes, customized lengths and thread configurations according to customer drawings and technical specifications.
Customization Is Our Strength: With drawing-based manufacturing and flexible production options, QBH supplies custom ASME B18.31.2 double-end studs with tailored dimensions, thread configurations and surface finishes, including plain, zinc-plated and hot-dip galvanized options, subject to order requirements. Contact us today to discuss your project needs.
QBH manufactures ASME B18.31.2 double-end studs in SAE J429 Grade 8 Medium Carbon Alloy Steell for high-strength fastening applications. With our manufacturing base in Ningbo, China, we offer inch-thread sizes, customized lengths and thread configurations according to customer drawings and technical specifications.
Customization Is Our Strength: With drawing-based manufacturing and flexible production options, QBH supplies custom ASME B18.31.2 double-end studs with tailored dimensions, thread configurations and surface finishes, including plain, zinc-plated and hot-dip galvanized options, subject to order requirements. Contact us today to discuss your project needs.
Product Details
Product Specifications
|
Place of Origin |
CHINA |
|
Standard |
ASME B18.31.2 SAE J429 |
|
HS CODE |
7318159001 |
|
Brand Name |
QBH |
|
Certification |
ISO9001 |
|
Material |
Medium Carbon Alloy Steel |
|
Size |
According to ASME B18.31.2 |
|
Production Process |
Forming, Thread Processing, Heat Treatment, Inspection and Finishing |
|
Grade |
1,2,5,8 |
|
Delivery Time |
Within 30Days |
Product Introduction
ASME B18.31.2 Double-End Studs are threaded fasteners with threads on both ends and an unthreaded shank in the middle. They are designed for fastening applications where a stud is installed between two components and secured with nuts. Depending on the required configuration, double-end studs can be supplied with different thread lengths and body dimensions.
QBH supplies double-end studs made from SAE J429 Grade 8 alloy steel. This high-strength grade is suitable for demanding mechanical and industrial fastening applications. Inch-series thread specifications and product dimensions are manufactured according to the applicable requirements of ASME B18.31.2 and SAE J429.
With a manufacturing base in Ningbo, China, QBH specializes in bolt and threaded rod production. We support customized product dimensions, lengths and thread configurations according to customer drawings, technical specifications and project requirements. Different surface finishes can also be supplied to meet specific application needs.
Material & Mechanical Properties
SAE J429 Grade 8 studs are manufactured from medium-carbon alloy steel and heat-treated by quenching and tempering. They are designed for high-strength fastening applications requiring high tensile strength and hardness.
|
Property |
Requirement |
|---|---|
|
Material |
Medium Carbon Alloy Steel |
|
Material Standard |
SAE J429 |
|
Grade |
Grade 8 |
|
Minimum Tensile Strength |
150,000 psi (1,034 MPa) |
|
Minimum Yield Strength |
130,000 psi (896 MPa) |
|
Minimum Proof Load |
120,000 psi (827 MPa) |
|
Minimum Elongation |
12% |
|
Hardness |
Rockwell C33–C39 |
|
Heat Treatment |
Quenched and Tempered |
The values above are the commonly specified SAE J429 Grade 8 requirements for nominal diameters from 1/4 in to 1-1/2 in. Confirm the applicable requirements for the ordered size and product configuration.
Dimensional Specifications & Thread
ASME B18.31.2 covers inch-series double-end studs in clamping type and tap end type configurations, with full-body and reduced-body designs. Thread dimensions and stud lengths are selected according to the applicable standard tables and customer requirements.
|
Item |
Specification |
|---|---|
|
Measurement System |
Inch Series |
|
Nominal Diameter |
According to ASME B18.31.2 |
|
Thread Series |
UNC / UNF / 8 UN, as applicable |
|
Body Type |
Full Body / Reduced Body |
|
Configuration |
Clamping Type / Tap End Type |
|
Overall Length |
According to standard dimensions or customer drawings |
|
Thread Length |
According to selected stud configuration |
Applications
ASME B18.31.2 Grade 8 double-end studs are suitable for high-strength fastening and clamping applications in mechanical and industrial equipment.
Typical applications include:
Industrial machinery and equipment
Automotive and mechanical assemblies
Heavy-duty equipment connections
Structural and metal component assemblies
Equipment bases and mounting systems
Product Specifications
|
Place of Origin |
CHINA |
|
Standard |
ASME B18.31.2 SAE J429 |
|
HS CODE |
7318159001 |
|
Brand Name |
QBH |
|
Certification |
ISO9001 |
|
Material |
Medium Carbon Alloy Steel |
|
Size |
According to ASME B18.31.2 |
|
Production Process |
Forming, Thread Processing, Heat Treatment, Inspection and Finishing |
|
Grade |
1,2,5,8 |
|
Delivery Time |
Within 30Days |
Product Introduction
ASME B18.31.2 Double-End Studs are threaded fasteners with threads on both ends and an unthreaded shank in the middle. They are designed for fastening applications where a stud is installed between two components and secured with nuts. Depending on the required configuration, double-end studs can be supplied with different thread lengths and body dimensions.
QBH supplies double-end studs made from SAE J429 Grade 8 alloy steel. This high-strength grade is suitable for demanding mechanical and industrial fastening applications. Inch-series thread specifications and product dimensions are manufactured according to the applicable requirements of ASME B18.31.2 and SAE J429.
With a manufacturing base in Ningbo, China, QBH specializes in bolt and threaded rod production. We support customized product dimensions, lengths and thread configurations according to customer drawings, technical specifications and project requirements. Different surface finishes can also be supplied to meet specific application needs.
Material & Mechanical Properties
SAE J429 Grade 8 studs are manufactured from medium-carbon alloy steel and heat-treated by quenching and tempering. They are designed for high-strength fastening applications requiring high tensile strength and hardness.
|
Property |
Requirement |
|---|---|
|
Material |
Medium Carbon Alloy Steel |
|
Material Standard |
SAE J429 |
|
Grade |
Grade 8 |
|
Minimum Tensile Strength |
150,000 psi (1,034 MPa) |
|
Minimum Yield Strength |
130,000 psi (896 MPa) |
|
Minimum Proof Load |
120,000 psi (827 MPa) |
|
Minimum Elongation |
12% |
|
Hardness |
Rockwell C33–C39 |
|
Heat Treatment |
Quenched and Tempered |
The values above are the commonly specified SAE J429 Grade 8 requirements for nominal diameters from 1/4 in to 1-1/2 in. Confirm the applicable requirements for the ordered size and product configuration.
Dimensional Specifications & Thread
ASME B18.31.2 covers inch-series double-end studs in clamping type and tap end type configurations, with full-body and reduced-body designs. Thread dimensions and stud lengths are selected according to the applicable standard tables and customer requirements.
|
Item |
Specification |
|---|---|
|
Measurement System |
Inch Series |
|
Nominal Diameter |
According to ASME B18.31.2 |
|
Thread Series |
UNC / UNF / 8 UN, as applicable |
|
Body Type |
Full Body / Reduced Body |
|
Configuration |
Clamping Type / Tap End Type |
|
Overall Length |
According to standard dimensions or customer drawings |
|
Thread Length |
According to selected stud configuration |
Applications
ASME B18.31.2 Grade 8 double-end studs are suitable for high-strength fastening and clamping applications in mechanical and industrial equipment.
Typical applications include:
Industrial machinery and equipment
Automotive and mechanical assemblies
Heavy-duty equipment connections
Structural and metal component assemblies
Equipment bases and mounting systems
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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