Wholesale Galvanized Double Twist Barbed Wire

This product consists of two strands of low‑carbon steel wire helically twisted together, with sharp barbs formed at regular intervals. The double‑twist geometry provides increased tensile rigidity and resistance to unraveling under tension, making it suitable for perimeter security where long‑term load stability is required.

Material & Construction

Core wires are manufactured from SAE 1008/1010 low‑carbon steel, cold‑drawn to achieve uniform diameter and consistent mechanical properties. The zinc coating is applied via hot‑dip galvanization, forming a metallurgical bond that protects against corrosion in outdoor environments.

Barbs are created by cutting and raising small protrusions on each strand before twisting, ensuring the barb tips remain aligned with the wire axis for effective deterrence. The twist pitch is controlled to maintain a balanced helix angle, which distributes stress evenly along the length.

Technical Specifications

Applications

The double‑twist configuration resists lateral movement, which is critical when the wire is stretched over uneven terrain or mounted on posts that experience thermal expansion.

• Perimeter fencing for agricultural livestock enclosures where animal pressure can cause conventional single‑wire to slack.
• Security barriers around industrial storage yards, deterring climbing attempts due to the dual‑strand stiffness and sharp barb geometry.
• Temporary site perimeter protection during construction, where rapid deployment and re‑tensioning are required.
• Wildlife exclusion fencing in forestry operations, providing a visible deterrent without excessive material weight.

Customization Options

Buyers can specify wire diameter, coating weight, and barb spacing to match site‑specific load expectations and environmental corrosivity.

• Wire diameter range: 1.8 mm to 3.2 mm, affecting tensile capacity and flexibility.
• Zinc coating options: standard (≈200 g/m²) or heavy (≈350 g/m²) for marine‑influenced atmospheres.
• Barb length and spacing adjustments to meet local regulatory height‑clearance or security‑level requirements.
• Roll length customization from 50 m for small projects up to 800 m for large‑scale perimeter runs.
• Optional PVC over‑coat in select colors for aesthetic blending or additional UV protection.

Quality Assurance

Each production lot undergoes dimensional verification of wire diameter and barb geometry using laser micrometers, ensuring tolerances within ±0.05 mm.

Coating adhesion is assessed by the ASTM D3359 tape test; a minimum rating of 4B is required before release.

Tensile strength samples are pulled to failure on calibrated universal testing machines, with results recorded for traceability.

Packaging & Logistics

Wire is wound onto corrosion‑resistant steel or wooden reels, then wrapped in UV‑stabilized polyethylene film to prevent surface abrasion during transit.

Reels are secured on pallets with corner protectors and stretch‑film, facilitating forklift handling and container stowage.

Standard pallet configuration holds up to 16 reels, optimizing weight distribution for 20‑ft and 40‑ft ocean containers.

Export Considerations

As an exporter, we provide the necessary documentation for customs clearance, including material safety data sheets, origin certificates, and phytodegradable packaging declarations where required.

Lead times are quoted per order volume and destination port, typically ranging from 18 to 30 days after receipt of confirmed purchase order and advance payment.

Frequently Asked Questions

Contact Us

For technical inquiries, custom specification requests, or to initiate a purchase, please reach out to our export department.