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China High-Strength Threaded Steel Anchor - Global Solution For Mines, Bridges & Tunnels | Jiufu Supplier,Manufacturer | Jiufu Mining Accessories

High-Strength Threaded Steel Anchor – Global Solution for Mines, Bridges & Tunnels | Jiufu

As a professional manufacturer integrating R&D, production, and global export, Hebei Jiufu Industrial and Mining Parts Co., Ltd. presents the High-Strength Threaded Steel Rock Bolt—an engineered solution trusted by projects in 150+ countries. From South African deep mines to European highway tunnels, from Southeast Asian bridge foundations to Australian coastal dams, this anchor bolt delivers reliable geotechnical support with exceptional durability, anti-loosening performance, and global standard compliance.


  • Fob Price: US $0.5 - 9,999 / Piece

    • Details

    Core Product Characteristics

    1. Premium Material & Precision Craftsmanship

    Crafted from high-grade deformed steel bars with low Si&P content (meeting GB/T 1499.2 standards), our threaded steel rock bolt features cold-rolled precision threads—an advanced process that reduces material damage and ensures uniform strength. The CNC-machined hexagonal base plate (flat steel material) enhances load-bearing capacity, while the sharpened rod end allows for easy insertion into drilled holes. Available in standard diameters of 16mm, 18mm, and 20mm (customizable from 12mm to 32mm) and lengths of 1-3m (extendable up to 6m), it adapts seamlessly to diverse project requirements.

    2. Global Standard Compliance & Corrosion Resistance

    The product is ISO9001 certified and complies with international standards including ISO 898-1, ASTM A325, and EU CE. We offer multiple surface treatment options to suit different environments:
    • Hot-dip galvanizing (430-600g/㎡ customizable): Ideal for humid mines and coastal projects, providing superior corrosion resistance.
    • Epoxy coating: Perfect for salt spray environments (e.g., Australian coastal areas) and chemical-rich mining sites.
    • Bare steel: Cost-effective for indoor or dry-land infrastructure projects.

    3. Outstanding Performance Advantages

    • Exceptional tensile strength (≥500 Mpa) and yield strength (≥350 Mpa), with anti 拔力 reaching ≥120 KN—effectively preventing rock mass displacement.
    • Anti-loosening design: Even under strong vibration (≥5G), the cold-rolled threads and nut connection remain firm, outperforming ordinary locking devices.
    • No pull-out load loss in the threaded section: Fully threaded bars ensure consistent strength throughout the rod body, making them suitable for high-demand bolting applications.
    • Cost-effective: No additional processing fees, with a long service life (≥15 years) reducing maintenance and replacement costs.
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    Global Application Scenarios

    Our High-Strength Threaded Steel Rock Bolt is versatile across industries and geological conditions, trusted in global projects:

    1. Mining Industry

    • Coal mines (China, Australia, Indonesia): Roof and wall support for underground roadways, preventing loose rock falls.
    • Hard rock mines (South Africa, Canada): Reinforcement of stope and tunnel surrounding rock in high-vibration environments.

    2. Infrastructure Construction

    • Highways & railways (Europe, Southeast Asia): Tunnel lining reinforcement, slope stabilization for mountainous roads.
    • Bridges (Vietnam, Brazil): Foundation anchoring and beam-column connection reinforcement, enhancing structural stability.

    3. Water Conservancy Projects

    • Dams (India, Brazil): Slope stabilization and flood control structure reinforcement, withstanding long-term moisture erosion.
    • Coastal protection (Australia, Southeast Asia): Corrosion-resistant epoxy-coated anchors for shoreline reinforcement.

    4. Civil Engineering

    • Deep foundation pits (Middle East, Europe): Soil layer reinforcement to prevent collapse during excavation.
    • High-rise buildings: Structural anchoring for columns, walls, and floor slabs, ensuring overall stability.

    Step-by-Step Installation Guide (with Regional Adaptation)

    1. Pre-Installation Preparation

    • Tools Required: Rebar cutter, rock drill (14-34mm bit), thread rolling machine, torque wrench (80-120 N·m calibrated), compressed air device (≥0.6 MPa), concrete mixer, measuring tape, and level.
    • Material Preparation: High-strength threaded steel anchor rods, CNC-machined base plates, nuts, and anchoring materials (resin or cement, depending on project needs).
    • On-Site Check: Conduct geological surveys to confirm rock/soil conditions; mark drilling positions according to engineering drawings (typical spacing: 1.0-1.5m, hole depth 10-15cm longer than rod length).

    2. Standard Installation Steps

    1. Precise Cutting: Cut rebar to the required length with a sharp rebar cutter, ensuring flat cuts (tolerance ±5mm) to avoid thread processing errors.
    2. Drilling: Drill holes 2-3mm larger than the anchor diameter (e.g., 18mm hole for 16mm rod). Use diamond-tipped bits for hard rock (European tunnels) and spiral bits for loose soil (Southeast Asia).
    3. Hole Cleaning: Blow holes repeatedly with compressed air from bottom to top to remove dust and loose particles—critical for anchoring material adhesion.
    4. Thread Processing: Use a thread rolling machine to process cold-rolled threads (length ≥50mm) on the anchor end. Avoid over-processing to prevent thread damage.
    5. Anchor Installation: Insert the anchor into the hole, place the base plate and nut, and tighten with a torque wrench to 80-120 N·m for optimal anti-loosening performance.
    6. Anchoring & Curing: For concrete structures, pour concrete within 30 minutes of installation. Allow resin/cement to cure (15-30 minutes at 20-25℃; extend to 72 hours in humid regions).

    3. Regional-Specific Precautions

    • Humid/Coastal Regions (Southeast Asia, Australia): Use epoxy-coated anchors; clean holes twice with compressed air to remove moisture. Extend concrete curing time to 72 hours.
    • High-Temperature Deep Mines (South Africa): Pre-cool the thread rolling machine to avoid thermal deformation; use high-temperature resistant resin for anchoring.
    • Hard Rock Tunnels (Europe): Use diamond-tipped drills for precise holes; apply anti-rust lubricant to nuts for easy maintenance.
    • Permafrost Regions (Siberia, Canada): Pre-heat drill holes to 5-10℃; use low-temperature concrete and install anchors within 5 minutes to prevent freezing.

    Customization Service

    We offer comprehensive customization to meet unique project requirements:
    • Customizable Parameters: Diameter (12-32mm), length (0.5-6m), thread type (metric/inch), surface treatment thickness, and base plate size (80×80×6mm~150×150×12mm).
    • Accessory Customization: Custom logo packaging, moisture-proof cartons for tropical regions, and special anchoring material matching.
    • Custom Process: Send your requirements (drawings/samples) → Get a quote within 24h → Confirm sample (free for orders over 1000pcs) → Mass production → Global delivery.

    Global Shipping & After-Sales Support

    • Shipping Terms: Support FOB (Tianjin Port), CIF, CFR, DDU, and DDP. We have rich experience shipping directly to project sites worldwide, with delivery times of 7-25 days (Europe: 10 days, Africa: 15 days, Southeast Asia: 7 days).
    • Payment Methods: Accept TT, L/C, Trade Assurance, Credit Card, and Western Union for flexible transactions.
    • After-Sales Service: 24/7 technical support via WhatsApp/email; free replacement for defective products within 1 year; on-site installation guidance for orders over 5000pcs; multilingual training (English/Spanish/Vietnamese) for local construction teams.
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    Why Choose Jiufu’s Threaded Steel Rock Bolt?

    With annual sales of 50 million US dollars and 12,000 tons of products exported globally, Jiufu combines decades of manufacturing expertise with customer-centric service. Our High-Strength Threaded Steel Rock Bolt stands out for its global compliance, customization capability, and reliable performance—trusted by engineering firms and mining companies worldwide.
    Contact us today to request a sample, get a customized quote, or discuss your project’s specific needs. Let Jiufu be your trusted partner for global geotechnical support solutions.

    Quality Control

    Jiufu adheres to strict quality management standards, with a complete quality control system from raw material to shipment:
    1. Raw material inspection: Chemical composition test for deformed steel bars to ensure low Si&P content.
    2. Production inspection: Thread precision measurement and base plate flatness testing.
    3. Finished product test: Tensile strength, anti-loosening performance, and corrosion resistance testing.
    4. Packaging inspection: Anti-collision and moisture-proof checks for long-distance shipping.
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      Hebei Jiufu Industrial and Mining Accessories Co., Ltd.

      The company adheres to the core business philosophy of "integrity-based, customer first" and provides attentive services to customers across the country, winning the trust and praise of the majority of users. In the days to come, all employees of Jiufu will continue to work hard, pioneer and innovate, and create sustained value for all new and old customers.
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