JM Hardware® TC Bolts
u bolt at Wholesale Prices | JM Hardware
The company has always adhered to fine management for many years, and strictly controls the quality of every important link such as product design, research and development, production, testing, and delivery to ensure that the u bolt produced are all qualified products that meet national standards.
Guided by scientific and technological innovation, JM Hardware always keeps outward-oriented and sticks to the positive development on the basis of technological innovation. u bolt We have been investing a lot in the product R&D, which turns out to be effective that we have developed u bolt. Relying on our innovative and hard-working staff, we guarantee that we offer customers the best products, the most favorable prices, and the most comprehensive services as well. Welcome to contact us if you have any questions.The product will have a larger market share with the development of the market.
When it comes to Tension Control Structural Bolts, JM Hardware® is the trusted screw manufacturer that delivers quality, precision, and performance. Whether you need standard TC bolts or customized solutions, we’re here to support your project with reliable products and exceptional service.
Different types for Tension Control Structural Bolt Available at JM Hardware®
JM Hardware® Twist-Off Bolt
JM Hardware® Shear Bolts
Materials Available at JM Hardware® Used in Tension Control Structural Bolts Manufacturing
Our concrete screw manufacturer capabilities allow us to offer screws in a wide variety of materials, tailored to perform in different environmental conditions:
Carbon Steel
A strong and economical choice, suitable for general-purpose applications.
Stainless Steel (SS304, SS316)
Provides excellent corrosion resistance, making it ideal for outdoor or high-humidity environments, such as coastal or marine applications.
Hardened Steel
Often used for heavy-duty applications, offering high strength and resilience for load-bearing connections.
Alloy Steel
Known for its high tensile strength, alloy steel is ideal for applications where additional strength is required.
Surface Treatments for Tension Control Structural Bolts Available at JM Hardware®
The performance and durability of our Tension Control Structural Bolts are enhanced with various surface finishes. Common options include:
Hot-Dip Galvanizing
Offers superior corrosion protection, ideal for outdoor or marine environments.
Black Oxide Coating
Provides moderate corrosion resistance and a sleek appearance, often used in indoor applications.
Zinc Plating
A cost-effective solution for moderate corrosion resistance in general environments
Grades of Tension Control Structural Bolts Available at JM Hardware®
We manufacture TC bolts in various grades to meet diverse project requirements. Our bolts conform to industry standards, including
ASTM A325
Commonly used for structural steel connections.
ASTM A490
High-strength bolts for heavy structural applications.
BS 7419
British standard high-strength structural bolts
DIN 6914
German standard for structural bolts with hexagon heads
Common Application Scenarios
Our concrete screws are used in a range of applications, making us a preferred screw manufacturer across industries:
Bridges
Ensures strong and reliable connections in high-stress load-bearing areas.
Highway Structures
Used in guardrails, overpasses, and support frames
Steel Frame Buildings
Secures beams and columns in large-scale construction projects
Industrial Plants
Used in heavy machinery installations and equipment support structures.
Power Plants
Provides secure connections for turbines, boilers, and other critical equipment.
Offshore Platforms
Resists harsh environmental conditions in oil and gas facilities.
Production equipment
Testing Equipment
Test report
JM Hardware® provides each batch of products with a finished product test report issued by our laboratory. If you need a test report issued by a third party, please inform us separately. The following two templates are for reference
SGS testing report
Third-party testing report
Packing
Certificate
Valued Partners
JM Hardware @ has exported its hardware parts to over 85 countries around the world.
We will make unremitting efforts to provide hardware parts with high quality and reasonable prices for our customers.
Why Choose JM Hardware® as Your Concrete Screw Manufacturer?
At JM Hardware®, we are dedicated to producing concrete screws that exceed industry expectations.
For all your concrete screw needs, JM Hardware® is the trusted screw manufacturer that delivers on quality, durability, and performance. Whether you’re working on construction, infrastructure, or industrial projects, our wide range of concrete screws is designed to meet your specific requirements. Contact us today to learn more about our products or to request a custom solution tailored to your project.
Product Introduction
Tension Control Bolts, TC Bolts or Twist Off Bolts Tension Control Bolts TC Bolt Twist off Bolt A325 A490 domestic are now the most popular choice in high-strength structural bolting and formally recognized by the AISC (American Institute of Steel Construction) and the RCSC (Research Council on Structural Connections) as an approved installation method.
Product Display
JM Hardware® Concrete Screw Bolt
JM Hardware® Concrete Bolt
JM Hardware® Concrete Screw
Quality Control
JM Hardware conducts product quality control in strict accordance with ISO 9001 standards to ensure that our products meet high quality standards. Below are our five quality control steps:
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Incoming material control
We carry out strict incoming material control by conducting dimensional tests on each batch of raw materials and checking the raw material reports from the steel mills. This ensures that the raw materials we use are within specification and provide a reliable basis for production.
We carry out strict incoming material control by conducting dimensional tests on each batch of raw materials and checking the raw material reports from the steel mills. This ensures that the raw materials we use are within specification and provide a reliable basis for production.
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First part control
After the mold assembly is completed, we conduct a thorough inspection of the first production part and make detailed records. Only qualified first parts can be released to start mass production. This step ensures that the quality of the product meets the standard at the beginning.
After the mold assembly is completed, we conduct a thorough inspection of the first production part and make detailed records. Only qualified first parts can be released to start mass production. This step ensures that the quality of the product meets the standard at the beginning.
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Self-inspection by workers during mass production
In the mass production process, we require the workers of each machine to carry out self-inspection every hour. If any substandard product is found, we will immediately pick or scrap the production within this hour until the problem is solved and meets the standard of conformity, and then we can continue the production. This self-inspection mechanism helps to find and solve problems in time during the production process.
In the mass production process, we require the workers of each machine to carry out self-inspection every hour. If any substandard product is found, we will immediately pick or scrap the production within this hour until the problem is solved and meets the standard of conformity, and then we can continue the production. This self-inspection mechanism helps to find and solve problems in time during the production process.
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QC inspection during mass production
In addition, every two hours, the quality inspection personnel will carry out random inspection on the products of each machine. Only qualified products can continue to flow into the next production stage. If non-conforming products are found, we will take the same selection or scrapping measures and ensure that the problem is properly handled. This helps provide additional quality assurance.
In addition, every two hours, the quality inspection personnel will carry out random inspection on the products of each machine. Only qualified products can continue to flow into the next production stage. If non-conforming products are found, we will take the same selection or scrapping measures and ensure that the problem is properly handled. This helps provide additional quality assurance.
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Finished product control
Finally, after each batch of finished product is made, we conduct random inspections in proportion to the order. Qualified products will be packaged and put into storage, while unqualified products will be returned for further analysis and rectification. We insist on ensuring that the quality of our products meets high standards so that we can provide reliable products to our customers.
Finally, after each batch of finished product is made, we conduct random inspections in proportion to the order. Qualified products will be packaged and put into storage, while unqualified products will be returned for further analysis and rectification. We insist on ensuring that the quality of our products meets high standards so that we can provide reliable products to our customers.
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Non-conforming goods management
According to the process of JMhardware's non-conforming products handling, pick or scrap. And the problem of rectification and tracking reasons to ensure that non-conforming products will not flow into the market.
According to the process of JMhardware's non-conforming products handling, pick or scrap. And the problem of rectification and tracking reasons to ensure that non-conforming products will not flow into the market.
These quality control measures constitute JM Hardware's quality management system, and we are constantly striving to improve the quality of our products and are committed to meeting the needs of our customers. We believe that quality control is the key to our success.
Production equipment
Testing Equipment
Test report
JM Hardware® provides each batch of products with a finished product test report issued by our laboratory. If you need a test report issued by a third party, please inform us separately. The following two templates are for reference
SGS testing report
Third-party testing report
Packing
Why Choose Us
Registered trademarks
RegisterJM in USA，EU ，UK，Quality Assuranc
Strong R&D Capability
Successfully developed 680+ new products in past 16 years
Rich Industry Experience
JM has the rich experience to supply the high quality fasteners to Project contractor
Mature & professional service teams
Provides 24/7 online and offline services for you,70%stuff have 5+ working experience in JM
Rich export experience
15+ years exported to 70+ countries
Supply one-stop service & DDP term
Help clients purchase other products,realize door-to-door service to make international procurement more convenient
Certificate
Valued Partners
JM Hardware @ has exported its hardware parts to over 85 countries around the world.
We will make unremitting efforts to provide hardware parts with high quality and reasonable prices for our customers.
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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.
xarella.huang@jm-fastener.comOur address
Add: Rm.27202, No.295 South Lingyan Road, Pudong,Shanghai,P.R.C
Contact person: xarella.huang
Whatsapp: +86 13681923533
Wechat:+86 18621005605
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Contact with us
Since our establishment in 2006, JM has been adhering to the mission of creating maximum value for customers by providing differentiated services, and making a positive contribution to the society.