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Home / Turnbuckle / M20 National Standard Turnbuckle Malleable Iron Screw Rigging Spiral Buckle, Galvanized Flower Lantern Bolt, Utility Pole Wire Rope Tensioner

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Turnbuckle
Origin -
Material Malleable Iron
Surface Finish Hot-Dip Galvanized
Thread Size M20
Standard Compliance National Standard
Application Wire Rope Tensioning
Design Type Screw Rigging Spiral Buckle
Common Name Flower Lantern Bolt
Usage Environment Utility Poles and Outdoor Rigging
Corrosion Resistance High (Galvanized Coating)
Load Capacity Heavy Duty Industrial Grade

6 reviews

A

Anonymous

Mar 31, 2026

Rating: 5/5

Perfect for utility pole maintenance

These turnbuckles are exactly what we needed for our line work. The galvanized finish is thick and uniform, providing excellent protection against the elements. The M20 threads engage smoothly without any cross-threading issues.

A

Anonymous

Mar 26, 2026

Rating: 5/5

Excellent corrosion resistance

Installed these six months ago in a coastal area with high salt exposure. The galvanization is holding up remarkably well with no rust spots visible yet. Very impressed with the durability.

A

Anonymous

Mar 21, 2026

Rating: 4/5

Solid construction, heavy duty

Very sturdy malleable iron construction. We used these for tensioning guide wires on a construction site. They hold tension well and show no signs of slipping. Only giving 4 stars because they are quite heavy to carry in bulk.

A

Anonymous

Mar 11, 2026

Rating: 4/5

Good product, fast shipping

The turnbuckles arrived well-packaged and undamaged. The quality seems consistent across all units in the batch. They function exactly as described for wire rope tensioning applications.

A

Anonymous

Mar 10, 2026

Rating: 5/5

Reliable for industrial use

We purchased these for our agricultural fencing projects. The flower lantern bolt design allows for precise tension adjustments. No failures so far after extensive use in the field.

A

Anonymous

Mar 01, 2026

Rating: 5/5

Great value for national standard specs

Complies perfectly with the national standards listed. The spiral buckle design makes adjustment easy even under load. Highly recommend for anyone needing reliable rigging hardware.

5 FAQ

Q: Can I use this for temporary stage rigging?

A: This product is primarily designed for utility pole and static wire rope tensioning. For overhead stage rigging involving human safety, please ensure the hardware meets specific entertainment industry safety certifications and regulations before use.

Q: Is this turnbuckle suitable for marine environments?

A: Yes, the hot-dip galvanized finish provides strong corrosion resistance, making it suitable for marine and high-humidity environments, though regular inspection is recommended.

Q: Are the threads metric or imperial?

A: As indicated by the 'M20' designation, the threads are metric with a 20mm diameter. Please ensure your existing rods or eye bolts match this metric specification.

Q: Does this come with the wire rope included?

A: No, this listing is for the turnbuckle hardware only. Wire ropes and other rigging accessories must be purchased separately to match your specific tensioning requirements.

Q: What is the maximum working load limit for the M20 size?

A: While specific load limits depend on the angle of use and safety factors, this M20 malleable iron turnbuckle is designed for heavy-duty industrial applications. Please consult the official national standard documentation for precise engineering load tables.

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