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GB/T 3632 Sets Of Torshear Type High Strength Bolt Hexagon Nut And Plain Washer For
Steel Structures
Tension Control Bolts, TC Bolts or Twist Off Bolts 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.
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.
Tension Control Bolts and the innovative Shear Wrench system are the lowest cost method for installing
preloaded or High Strength Friction Grip bolts.
QBH TC Bolts as they are commonly known throughout the world, are replacing conventional
high strength friction grip bolts and swaged collar rivets simply because they are quick and
easy to install using lightweight electric shear wrenches. Guaranteed tension together with
visual inspection removes the likelihood of operator error and ensures engineers that connections
are tightened in accordance with specifications.
Our System HRC structural bolting assemblies are used in a wide range of applications, from bridge
splice plates to beam-to-column connections, from stadia roof trusses to rail switches and crossings.
The combination of a TC bolts superior tensile strength and phenomenal ductility result in a truly
universal bolt that can be employed in almost all steelwork connections.
Tension Control Bolt Advantages:
| STYLE | TORSIONAL SHEAR BOLTS ASSEMBLED SET [ NUT+BOLT+WASHER ] |
| STANDARD | GB/T 3632-2008 |
| SUPPLIER | QBH |
| SHOP | qbfastener.en.made-in-china.com |
| SIZE | M12-M30 |
| FINISH | PLAIN, BLACK, Z.P., Y.Z.P., H.D.G., DACROMET, GEOMET, NICKLE PLATED, MECHANICAL ZINC PLATED, ETC. |
| CLASS | 10.9S |
| MATERIAL | MEDIUM CABON STEEL, CUSTOMIZED |
| Process | Cold Forging,Hot Forging |
| PACKING |
BULK/BOXES IN CARTONS, BULK IN POLYBAGS/BUCKETS, ETC. |
| PALLET |
SOLID WOOD PALLET, PLYWOOD PALLET, TON BOX/BAG, ETC.
|
Materials and Chemical Compstition
SCM435
| CHEMICAL COMPOSI % | ||||||||
| C | Si | Mn | P | S | Cr | Ni | Cu | Mo |
| 0.35 | 0.22 | 0.59 | 0.01 | 0.003 | 0.93 | 0.01 | 0.01 | 0.21 |
Our Services
Free Samples for Standard Fastener from Jiaxing City Qunbang Hardware
We Promise:
1.High quality
2. Competitive price
3. The shortest delivery
4. The fastest response
5. The best service
FAQ
1.What's your experience like?
Our general manager has been engaged in the export of fasteners since 2005.
Our team can provide you with professional fasteners selling and smooth export services.
2.How about your price?
High quality products with reasonable price. Please give me a inquire, We will quoted you a price for you
refer at once.
3. How do you control your quality?
We require the quality control department to inspect every production link of each shipment. And we can provide you MTC and mill certificate when the goods is finished.
4.How about your delivery time?
General speaking, if the goods is in stock, we can delivery them with 2-5days, If the quantity is 1-2container, we can give you with 18-25days,if the quantity is more than 2 container and you are very urgent, we can let factory priority produce
your goods.
5.What is your packing?
Our packing is 20-25kg for one carton,36 or 48pcs cartons for one pallet. One pallets is about 900-960kg, We also can make customer's logo on the cartons. Or we customized cartons according to customers'
requirement.
6.What is your payment term?
We can accept T/T,LC for general order ,Paypal and Western union for small order or samples order.
Awaiting for your kind inquiry! Thanks & best regards!
For more information: http://qbfastener.en.made-in-china.com
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