Standard Bolt
18 years professional hardware manufacturer - JM Hardware
Language
18 years professional hardware manufacturer - JM Hardware
A Tension Control Bolts consists of 1 bolt, 1 nut and 1 washer, pre-assembled and there for they are shown, 1 lot number, on the certification paperwork. Tension Control Bolts assemblies come with their own built in tension control device (spline) to ensure dependable and repeatable tension levels are achieved with each installation. They are installed with a specialized electric shear wrench that has an outer socket that turns the nut counterclockwise, while grabbing the spline with the inner socket turning it clockwise. When the proper tension level has been achieved the spline snaps off giving you a visual indication of proper installation.
TC bolts use a proprietary lubrication on the nut, to control the clamping force of the bolt and ensure the appropriate tension level is achieved. Because of this proprietary lubrication, it is NOT permissible to re-lubricated TC bolts, in the field, only the manufacture of a TC bolt can re-lubricate a TC assembly.
Commonly used in critical steel applications, tension control bolts feature a spline that disconnects when the appropriate bolt tension is reached. These tension control bolt assemblies come with nuts and washers.
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.
JM Hardware® Concrete Bolt
JM Hardware® Concrete Screw
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:
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.
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
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
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.
Contact Us
Take advantage of our unrivaled knowledge and experience, we offer you the best customization service.
Since our establishment in 2006, JM has been adhering to the mission of creating maximum value for customers by providing differentiated services, building a stage for employees to succeed, and making a positive contribution to the society.
