Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of Threaded Steel Bar Supplier | PSB830 PSB1080 Prestressing Thread Bar for Bridge & Ground Anchor in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
High Strength PSB Thread Bar for Bridge, Tunnel, Ground Anchor and Post-Tensioning Projects
Xi'an Dongmeng Group Co., Ltd. supplies high strength threaded steel bar, PSB thread bar and prestressing screw thread steel bar for bridge construction, tunnel support, metro engineering, ground anchors, slope stabilization, foundation reinforcement, dam engineering, mining support and post-tensioning systems.
Threaded steel bar is a high strength steel bar with continuous thread ribs or rolled threads along the bar body. It can be anchored, tensioned and mechanically connected with matching nuts, couplers, bearing plates and washers. Compared with ordinary reinforcing bar, threaded steel bar provides better installation flexibility, easier mechanical connection and reliable load transfer for heavy civil engineering projects.
We supply PSB500, PSB785, PSB830, PSB930, PSB1080 and project-specific grades. Standard and customized diameters, cut-to-length service, black surface, hot dip galvanized surface, epoxy coated surface and complete accessory systems are available according to project drawings and purchase specifications.
What Is Threaded Steel Bar?
Threaded steel bar is a high strength bar designed for anchoring, tensioning, mechanical connection and load transfer in structural engineering projects. It is also known as PSB thread bar, prestressing thread bar, screw thread steel bar, post-tensioning bar or ground anchor bar.
The continuous thread profile allows the bar to be connected or anchored at different positions by using matching nuts and couplers. This makes it suitable for bridge construction, tunnel reinforcement, slope stabilization, foundation support, retaining wall anchoring, dam engineering, mining support and precast concrete connection.
For international projects, threaded steel bar is usually purchased together with nuts, couplers, bearing plates and washers to form a complete anchoring or post-tensioning system.
Why B2B Buyers Choose Threaded Steel Bar
Reliable Mechanical Connection
Threaded steel bar can be connected with couplers and fixed with nuts and bearing plates. This helps contractors achieve reliable mechanical connection and easier site adjustment during construction.
Suitable for High Load Anchoring
High strength PSB thread bars are suitable for ground anchors, rock bolts, retaining walls, foundation support and post-tensioning applications where strong tensile performance and stable anchoring are required.
Easier Installation on Jobsite
Because the thread profile is continuous, workers can adjust the nut position more easily during installation. This improves flexibility for bridge, tunnel, foundation and temporary support systems.
Complete Accessory Matching
We can supply threaded steel bars together with matching nuts, couplers, bearing plates, washers and anchor plates. This helps buyers reduce mismatch risk and improve procurement efficiency.
Custom Length for Project Drawings
Threaded steel bars can be supplied in standard lengths or cut according to project requirements. Custom marking, bundle tags and accessory packing can also be arranged for easier site management.
Surface Protection Options
Black hot rolled surface is suitable for many standard applications. Hot dip galvanized and epoxy coated threaded steel bars are available for projects requiring higher corrosion protection.
Available Grades
PSB500 Threaded Steel Bar
PSB500 threaded steel bar is suitable for general anchoring, formwork systems, temporary support, medium-load construction connection and foundation reinforcement.
Recommended for:
Formwork tie systems
Temporary structural support
General construction anchoring
Foundation reinforcement
Precast concrete connection
Medium-load civil engineering projects
PSB785 Threaded Steel Bar
PSB785 threaded steel bar provides higher strength than PSB500 and is commonly used for retaining walls, excavation support, slope stabilization and foundation anchoring.
Recommended for:
Retaining wall anchoring
Excavation support
Slope stabilization
Soil nailing
Foundation anchoring
Civil engineering reinforcement
PSB830 Threaded Steel Bar
PSB830 is one of the most commonly used grades for bridge, tunnel, metro, highway, ground anchor and post-tensioning projects. It provides a strong balance of strength, availability and construction performance.
Recommended for:
Bridge construction
Tunnel support
Metro engineering
Highway projects
Ground anchors
Post-tensioning systems
Slope stabilization
Foundation support
PSB930 Threaded Steel Bar
PSB930 threaded steel bar is suitable for higher-load anchoring and demanding infrastructure projects where stronger tensile performance is required.
Recommended for:
Heavy infrastructure
Underground engineering
High-load anchoring
Large retaining structures
Bridge reinforcement
Dam and hydropower projects
PSB1080 Threaded Steel Bar
PSB1080 threaded steel bar is recommended for demanding post-tensioning, bridge structures, dam engineering and high-load ground anchoring projects.
Recommended for:
High-load post-tensioning
Bridge structures
Dam engineering
Hydropower projects
Deep foundation anchoring
Rock anchoring
Heavy civil engineering projects
Threaded Steel Bar Size Chart
We supply high strength threaded steel bars in standard and customized sizes for bridge, tunnel, ground anchor, slope stabilization, foundation, dam, mining and post-tensioning projects. Common diameters, lengths, surface treatments and accessory systems can be supplied according to project drawings.
Common Threaded Steel Bar Sizes
| Nominal Diameter | Inch Equivalent | Common Length | Surface Options | Common Applications |
|---|---|---|---|---|
| 15mm | 0.591" | 3m / 6m / 9m / 12m | Black / Galvanized / Epoxy Coated | Light anchoring, formwork, temporary support |
| 18mm | 0.709" | 3m / 6m / 9m / 12m | Black / Galvanized / Epoxy Coated | Construction anchoring, soil nailing |
| 20mm | 0.787" | 3m / 6m / 9m / 12m | Black / Galvanized / Epoxy Coated | Foundation support, retaining wall anchoring |
| 25mm | 0.984" | 3m / 6m / 9m / 12m | Black / Galvanized / Epoxy Coated | Ground anchor, tunnel support, slope stabilization |
| 28mm | 1.102" | 3m / 6m / 9m / 12m | Black / Galvanized / Epoxy Coated | Bridge, metro, underground support |
| 32mm | 1.260" | 3m / 6m / 9m / 12m | Black / Galvanized / Epoxy Coated | Post-tensioning, bridge, foundation anchoring |
| 36mm | 1.417" | 3m / 6m / 9m / 12m | Black / Galvanized / Epoxy Coated | Heavy anchoring, tunnel and bridge projects |
| 40mm | 1.575" | 3m / 6m / 9m / 12m | Black / Galvanized / Epoxy Coated | High-load ground anchor, dam, hydropower |
| 50mm | 1.969" | 6m / 9m / 12m | Black / Galvanized / Epoxy Coated | Heavy infrastructure, bridge and dam anchoring |
| 63.5mm | 2.500" | 6m / 9m / 12m | Black / Galvanized / Epoxy Coated | High-load post-tensioning and structural anchoring |
| 75mm | 2.953" | 6m / 9m / 12m | Black / Galvanized / Epoxy Coated | Large-scale bridge, dam and foundation projects |
Custom diameters, cut-to-length service, special thread profile and project marking are available according to drawings.
Theoretical Weight Chart
The following weights are for reference only. Actual unit weight may vary depending on thread profile, rolling tolerance and project specification.
| Nominal Diameter | Approx. Weight kg/m | 6m Bar Weight | 9m Bar Weight | 12m Bar Weight |
|---|---|---|---|---|
| 15mm | 1.39 kg/m | 8.34 kg | 12.51 kg | 16.68 kg |
| 18mm | 2.00 kg/m | 12.00 kg | 18.00 kg | 24.00 kg |
| 20mm | 2.47 kg/m | 14.82 kg | 22.23 kg | 29.64 kg |
| 25mm | 3.86 kg/m | 23.16 kg | 34.74 kg | 46.32 kg |
| 28mm | 4.84 kg/m | 29.04 kg | 43.56 kg | 58.08 kg |
| 32mm | 6.32 kg/m | 37.92 kg | 56.88 kg | 75.84 kg |
| 36mm | 8.00 kg/m | 48.00 kg | 72.00 kg | 96.00 kg |
| 40mm | 9.87 kg/m | 59.22 kg | 88.83 kg | 118.44 kg |
| 50mm | 15.43 kg/m | 92.58 kg | 138.87 kg | 185.16 kg |
| 63.5mm | 24.88 kg/m | 149.28 kg | 223.92 kg | 298.56 kg |
| 75mm | 34.71 kg/m | 208.26 kg | 312.39 kg | 416.52 kg |
Threaded Steel Bar Grade Chart
| Grade | Typical Strength Level | Recommended Applications |
|---|---|---|
| PSB500 | Medium strength threaded bar | Formwork systems, temporary support, general anchoring |
| PSB785 | Higher strength anchoring bar | Retaining walls, foundation support, slope stabilization |
| PSB830 | Common high strength PSB thread bar | Bridge, tunnel, metro, ground anchor, post-tensioning |
| PSB930 | High-load threaded steel bar | Heavy infrastructure, underground engineering, dam projects |
| PSB1080 | Extra high strength prestressing thread bar | High-load post-tensioning, bridge, dam, hydropower, deep anchoring |
Final mechanical properties should be confirmed according to ASTM A722, ISO 6934-5, GB/T 20065 or project specification.
Accessory Matching Table
| Bar Diameter | Matching Accessories | Packing Method | Buyer Notes |
|---|---|---|---|
| 15mm – 20mm | Nut, washer, small bearing plate | Bundle + carton / wooden case for accessories | Suitable for lighter anchoring and support systems |
| 25mm – 32mm | Nut, coupler, bearing plate, washer | Steel bundle + wooden case accessories | Common size range for ground anchor and tunnel projects |
| 36mm – 40mm | Heavy nut, coupler, bearing plate, anchor plate | Strong bundle + palletized accessories | Suitable for bridge, metro, foundation and high-load anchoring |
| 50mm – 75mm | Heavy-duty nut, coupler, large bearing plate, customized anchor plate | Reinforced bundle + wooden case / pallet | Used for large infrastructure, dam, hydropower and heavy post-tensioning projects |
Surface Treatment Options
| Surface Treatment | Main Advantage | Recommended Use |
|---|---|---|
| Black Hot Rolled | Cost-effective and common supply condition | Standard construction, internal anchoring, temporary works |
| Hot Dip Galvanized | Better corrosion resistance for exposed environments | Ground anchors, slope stabilization, outdoor infrastructure, humid or coastal areas |
| Epoxy Coated | Improved surface protection and concrete isolation | Infrastructure, foundation, concrete structure and aggressive environments |
| Customized Coating | Project-specific corrosion protection | Special engineering projects requiring longer service life |
Quotation Information Required
To quote threaded steel bar accurately, please send the following details:
| Required Information | Example |
|---|---|
| Grade | PSB830 / PSB1080 / ASTM A722 150 ksi |
| Diameter | 25mm / 32mm / 36mm / 40mm / 50mm |
| Length | 6m / 9m / 12m / cut to length |
| Quantity | Tons or pieces |
| Surface | Black / hot dip galvanized / epoxy coated |
| Accessories | Nuts, couplers, bearing plates, washers, anchor plates |
| Standard | ASTM A722 / ISO 6934-5 / GB/T 20065 / project specification |
| Drawing | Required for customized accessories or special thread profile |
| Certificate | MTC 3.1 / third-party inspection |
| Destination Port | For freight and packing calculation |
Threaded Steel Bar Surface Options
Black Hot Rolled Threaded Steel Bar
Black hot rolled threaded steel bar is commonly used for standard construction, temporary support, internal anchoring and projects where additional coating is not required.
Hot Dip Galvanized Threaded Steel Bar
Hot dip galvanized threaded steel bar provides better corrosion resistance for outdoor, humid, coastal or long-service applications. It is suitable for ground anchors, slope stabilization, retaining walls, infrastructure and exposed construction environments.
Epoxy Coated Threaded Steel Bar
Epoxy coated threaded steel bar is used when improved corrosion protection and surface isolation are required. It is suitable for infrastructure, concrete structures, foundation projects and aggressive environments.
Complete Threaded Steel Bar Accessory System
A complete threaded steel bar system usually includes bars and matched accessories. Supplying accessories together with bars helps reduce mismatch risk and improves installation efficiency.
Available accessories include:
Threaded nuts
Hex nuts
Spherical nuts
Domed nuts
Couplers
Bearing plates
Washers
Anchor plates
Customized anchoring components
Accessory dimensions can be supplied according to bar diameter, thread profile and project drawings.
Applications of Threaded Steel Bar
Bridge Construction
Threaded steel bars are widely used in bridge post-tensioning, segmental bridge construction, temporary anchoring, structural connection, bridge deck reinforcement and heavy load transfer systems.
Search terms buyers may use:
threaded steel bar for bridge construction
PSB830 thread bar for bridge
post tensioning bar for bridge
prestressing thread bar for bridge project
Tunnel and Metro Projects
Threaded steel bars are used for tunnel support, lining reinforcement, rock bolts, underground anchoring, metro station construction and excavation support.
Search terms buyers may use:
threaded steel bar for tunnel support
PSB thread bar for tunnel
ground anchor bar for metro construction
threaded bar for underground engineering
Ground Anchor and Slope Stabilization
Threaded steel bars are commonly used for retaining walls, slope stabilization, soil nailing, rock anchoring, foundation support and excavation protection.
Search terms buyers may use:
ground anchor threaded steel bar
threaded steel bar for slope stabilization
PSB830 ground anchor bar
rock anchor threaded bar
soil nailing thread bar
Foundation Reinforcement
Threaded steel bar is suitable for foundation anchoring, pile foundation reinforcement, basement support, load transfer systems and heavy structural connection.
Search terms buyers may use:
threaded steel bar for foundation
post tensioning bar for foundation
high strength thread bar for foundation support
Dam and Hydropower Engineering
High strength threaded steel bars can be used for dam anchoring, hydropower structures, water conservancy projects and high-load reinforcement systems.
Search terms buyers may use:
PSB1080 thread bar for dam
prestressing thread bar for hydropower project
high strength threaded bar for dam anchoring
Mining and Underground Support
Threaded steel bars can be used for mine tunnel reinforcement, rock support, underground stabilization and temporary or permanent anchoring systems.
Search terms buyers may use:
threaded steel bar for mining
rock bolt thread bar
underground support threaded bar
high strength anchor bar for mining
Precast Concrete and Formwork Systems
Threaded steel bars are also used for precast concrete connection, lifting, fixing, formwork tie systems and reusable construction support systems.
Search terms buyers may use:
threaded steel bar for precast concrete
thread bar for formwork system
threaded bar with nuts and plates
Threaded Steel Bar vs Ordinary Rebar
Threaded steel bar and ordinary rebar are both used in construction, but their functions are different.
Ordinary rebar is mainly used as concrete reinforcement. It improves the tensile performance of reinforced concrete after being embedded in concrete.
Threaded steel bar is designed for anchoring, tensioning and mechanical connection. It can be connected with nuts and couplers and can transfer load through an anchoring system. This makes it more suitable for post-tensioning, bridge, tunnel, ground anchor, slope stabilization and foundation support projects.
If your project requires mechanical connection, tensioning, adjustable anchoring or matched nuts and couplers, threaded steel bar is usually a more suitable choice than ordinary rebar.
Threaded Steel Bar vs Threaded Rod
Threaded steel bar for construction engineering is different from common threaded rod used in fasteners or machinery.
Common threaded rod is usually used for fastening, hanging, machinery fixing, electrical installation or light structural connection.
Prestressing threaded steel bar is designed for heavy civil engineering applications such as bridge construction, ground anchors, post-tensioning, tunnel support, foundation reinforcement and slope stabilization. It usually requires higher strength, matched anchoring accessories and stricter project inspection.
For engineering procurement, buyers should confirm grade, diameter, length, tensile requirement, thread type, accessory system and inspection standard before ordering.
Quality Control and Inspection
Xi'an Dongmeng Group applies strict inspection before shipment to ensure that the threaded steel bars meet project requirements.
Inspection items can include:
Raw material inspection
Chemical composition analysis
Yield strength test
Tensile strength test
Elongation test
Diameter measurement
Length measurement
Thread profile inspection
Thread gauge checking
Straightness inspection
Surface quality inspection
Coating thickness test for galvanized or epoxy coated bars
Nut and coupler matching test
Bearing plate dimension check
Bundle quantity verification
MTC 3.1 review
Third-party inspection by SGS, BV, TUV or Intertek on request
For project orders, inspection requirements can be agreed before production according to purchase specifications or engineering documents.
Packaging and Shipping
Threaded steel bars are packed for export transportation and jobsite handling.
Standard packing options include:
Steel strip bundling
Waterproof wrapping
Bundle tags
Project number marking
Heat number marking
Thread protection if required
Wooden case packing for nuts and accessories
Carton packing for small accessories
Palletized packing for plates and washers
Container loading support
Customized shipping marks according to project requirement
We can arrange container shipment, bulk vessel shipment or project logistics according to order quantity, bar length and destination port.
How to Choose the Right Threaded Steel Bar
To choose the correct threaded steel bar, buyers should confirm the following details:
Required grade
Diameter
Length
Thread type
Surface treatment
Quantity
Accessory requirement
Working load or design load
Project standard
Drawing requirement
Inspection requirement
Destination port
If you are not sure which grade or size is suitable, please send your project drawing or technical requirement. Our team can help check the specification and provide a suitable supply proposal.
Information Needed for Quotation
To provide an accurate quotation, please send us:
Grade: PSB500 / PSB785 / PSB830 / PSB930 / PSB1080 or other grade
Diameter: such as 25mm, 32mm, 36mm, 40mm, 50mm or customized
Length: 3m, 6m, 9m, 12m or cut to length
Quantity: total tons or number of pieces
Surface: black, galvanized or epoxy coated
Accessories: nuts, couplers, bearing plates, washers or anchor plates
Standard: ASTM A722, ISO 6934-5, GB/T 20065 or project specification
Drawing: required if accessories or thread profile are customized
Destination port: for freight calculation
Certificate: MTC 3.1 or third-party inspection requirement
The more complete the information, the faster we can provide an accurate price, delivery time and packing solution.
Why Choose Xi'an Dongmeng Group Co., Ltd.?
Xi'an Dongmeng Group Co., Ltd. is a professional supplier of carbon steel and construction steel products for international engineering and industrial projects.
We support B2B buyers with:
High strength threaded steel bar supply
PSB500, PSB785, PSB830, PSB930 and PSB1080 grades
Complete nuts, couplers and bearing plate system
Custom cutting and project marking
Black, hot dip galvanized and epoxy coated surface options
MTC 3.1 and inspection document support
Third-party inspection accepted
Export seaworthy packing
Container loading support
Technical quotation based on drawings
Global delivery for project orders
Our goal is to help contractors, distributors, engineering companies and project procurement teams source reliable threaded steel bar systems with stable quality, clear documentation and professional export service
who choose us?
Prestressed steel anchor rods are mainly composed of anchor heads, rod bodies, pads, etc. Among them, the rod body usually uses high-strength precision-rolled threaded steel bars, which have excellent mechanical properties and bearing capacity. The anchor heads and pads are used to firmly connect the anchor rods to concrete or rock and soil.
one-stop solution
professional team
high quality
FAQ
What is threaded steel bar?
Threaded steel bar is a high strength steel bar with continuous thread ribs or rolled threads. It is used for anchoring, tensioning, mechanical connection and load transfer in bridge, tunnel, foundation, ground anchor and post-tensioning projects.
What is PSB thread bar?
PSB thread bar is a prestressing screw thread steel bar used for high strength anchoring and post-tensioning applications. Common grades include PSB500, PSB785, PSB830, PSB930 and PSB1080.
What is threaded steel bar used for?
Threaded steel bar is used for bridge construction, tunnel support, ground anchors, slope stabilization, foundation reinforcement, retaining walls, dam engineering, mining support, post-tensioning systems and precast concrete connection.
What is the difference between threaded steel bar and ordinary rebar?
Ordinary rebar is mainly used as concrete reinforcement. Threaded steel bar is designed for anchoring and mechanical connection. It can be fixed or connected with nuts, couplers and bearing plates.
What is the difference between threaded steel bar and threaded rod?
Threaded rod is commonly used for fastening and general mechanical connection. Prestressing threaded steel bar is used for heavy civil engineering, anchoring and post-tensioning applications where higher strength and matched accessories are required.
Can you supply PSB830 threaded steel bar?
Yes. We can supply PSB830 threaded steel bar for bridge, tunnel, ground anchor, slope stabilization and post-tensioning projects.
Can you supply PSB1080 threaded steel bar?
Yes. PSB1080 threaded steel bar is available for demanding anchoring, bridge, dam, hydropower and high-load post-tensioning projects.
Can you supply nuts and couplers together with threaded steel bars?
Yes. We can supply matched nuts, couplers, bearing plates, washers and anchor plates together with threaded steel bars.
What diameters can you supply?
Common diameters include 15mm, 20mm, 25mm, 28mm, 32mm, 36mm, 40mm, 50mm, 63.5mm and 75mm. Customized sizes are available according to project requirements.
Can you cut threaded steel bars to custom length?
Yes. Standard lengths and custom cut-to-length service are available. Please send the required length and tolerance before quotation.
What surface treatments are available?
We can supply black hot rolled, hot dip galvanized and epoxy coated threaded steel bars according to corrosion protection requirements.
Can threaded steel bar be used for ground anchors?
Yes. High strength threaded steel bar is widely used for ground anchors, slope stabilization, retaining walls, soil nailing and rock anchoring projects.
Can threaded steel bar be used for post-tensioning?
Yes. Prestressing threaded steel bar is commonly used for post-tensioning, bridge construction, foundation anchoring and heavy structural connection systems.
Do you provide MTC 3.1?
Yes. MTC 3.1 can be provided with each batch. Third-party inspection by SGS, BV, TUV or Intertek can also be arranged on request.
Can you produce according to project drawings?
Yes. Please send your drawing, grade, diameter, length, thread requirement, accessory details and inspection standard. We can check the requirement and provide a quotation.
How are threaded steel bars packed?
Threaded steel bars are packed in steel bundles with waterproof wrapping and bundle tags. Nuts, couplers, washers and bearing plates can be packed separately in wooden cases, cartons or pallets.
What information should I send for a fast quotation?
Please send grade, diameter, length, quantity, surface treatment, accessory requirement, standard, drawing, destination port and certificate requirement.
Contact Us
Xi'an Dongmeng Group Co., Ltd.
Phone / WhatsApp / WeChat: +86 15769214734
Email: office@dongmjd.com
Website: www.cndmmetal.com
Send us your threaded steel bar inquiry today and get a project-based quotation with datasheet, MTC, accessory matching and export packing solution.
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