Material Adjustable Turnbuckle Hot Dip Galvanized Turnbuckle

1、High strength adjustable design 

(keywords: high-strength flower basket bolt, adjustable tensioner, steel structure tension control)

The flower basket bolts are made of 45 # carbon steel or 40Cr alloy steel, with a tensile strength of up to 800-1000MPa and a maximum bearing capacity of 200 tons. The unique bidirectional thread design enables precise adjustment of ± 2mm, making it particularly suitable for engineering scenarios such as bridge stay cables and building curtain wall supports that require precise tension control. According to laboratory testing, the regulating mechanism can be operated more than 50000 times without failure.

2、Excellent anti-corrosion performance

 (keywords: hot-dip galvanized basket bolts, stainless steel regulators, corrosion-resistant fasteners)

The standard product is treated with 80 μ m hot-dip galvanizing and has passed a 3000 hour neutral salt spray test; 304/316 stainless steel material is optional, especially suitable for corrosive environments such as marine engineering and chemical equipment. Tests have shown that the hardness of the galvanized layer reaches HV550, the wear resistance is more than three times that of ordinary bolts, and the service life exceeds 15 years.

3、Multi functional application scenarios

 (keywords: universal rotating flower basket bolt, irregular connection adjuster, non-standard customized tensioning device)

The product specifications cover M10-M56, providing multiple models such as bidirectional adjustment, unidirectional locking, and universal rotation. The specially designed special-shaped connector can perfectly adapt to different structures such as angle steel, H-shaped steel, round pipe, etc., and the installation efficiency has been improved by 50%. It has been successfully applied to 500+key projects.

4、Safe and reliable structure 

(keywords: anti loosening flower basket bolts, high safety factor fasteners, seismic resistant building connectors)

Adopting a triple anti loosening design (locking nut+anti loosening gasket+thread glue), it has passed the 8-level seismic test. The product complies with the GB/T 1231-2006 standard, with a safety factor of 3 times the working load, and has been applied to multiple large public buildings with seismic fortification intensity of 8 degrees or above.

1、Construction & Architecture

Turnbuckles provide precise tension adjustment for curtain walls, steel structures, and cable railings. Their high load capacity (up to 200 tons) ensures stability in skyscrapers, stadiums, and glass facades.

2、Bridges & Infrastructure

Used in cable-stayed bridges, suspension systems, and guy wires, turnbuckles maintain structural integrity under dynamic loads. 316 stainless steel models resist corrosion in harsh environments.

3、Marine & Offshore

Ideal for rigging, sailboat stays, and dock bracing, turnbuckles withstand saltwater exposure. Hot-dip galvanized or 316 stainless versions prevent rust in marine applications.

4、Stage & Event Rigging

Adjustable turnbuckles secure lighting trusses, sound systems, and temporary structures with ±1mm precision, ensuring safety during concerts and exhibitions.

5、Industrial Machinery

Used in conveyor belt tensioning, crane systems, and pipeline supports, turnbuckles offer durability and easy maintenance in high-vibration environments.

6、Renewable Energy

Critical for solar panel mounts and wind turbine guy wires, turnbuckles endure extreme weather while maintaining tension stability.

Product Operate Guide

1. Pre installation inspection

Visual inspection: Confirm that the threads are not damaged, deformed, or corroded

Accessory matching: Check that the size of the connectors (hooks/loops/forks) at both ends is consistent with the size of the connecting piece

Lubrication treatment: Apply a small amount of lubricating grease (such as molybdenum disulfide) to the thread

2.Step by Step Installation Guide

Step 1: Initial Connection

Fix both ends separately to anchor points (steel cables/structural holes)

Manually pre tighten to eliminate slack state

Step 2: Tension Adjustment

Use a special wrench to cover the middle socket

Clockwise rotation (tightening)/counterclockwise rotation (relaxing)

Adjust no more than 1/4 turn each time, alternate between adjusting both ends to maintain balance

Step 3: Final Locking

After reaching the target tension, tighten with a torque wrench to the standard value (e.g. M24=120N · m)

Apply an additional 30% torque to the anti loosening nut to ensure it locks in place

3. Adjustment precautions

Do not use electric tools to directly impact the sleeve. In dynamic load situations, a 10% safety margin should be retained. After adjustment, mark the nut position with a paint pen

4. Scrap judgment criteria

Replace immediately if it is found that the effective meshing area of the thread is less than 70%, visible cracks appear in any part, the sleeve cannot rotate, and there is no lubrication problem

1. What is a flower basket bolt?

Flower basket bolt (also known as tensioner, adjusting screw) is a metal connector used to adjust the tension of ropes, steel wire ropes or chains. It consists of two threaded ends (left and right) and a central adjusting ring, which can be tightened or loosened by rotating the main body. Widely used in fields such as ships, buildings, stage construction, and power lines.

2. The main types of flower basket bolts？

(1) Classified by structure

Open Body: The central adjustment ring is exposed, making it easy to adjust quickly, but the protection is poor.

Closed Body: The central adjustment ring is sealed, dust-proof and rust proof, suitable for long-term outdoor use.

(2) Classified by end connection method

Hook Ends: With hooks at both ends, it is convenient to temporarily connect ropes or chains.

Eye Ends: Both ends are circular and used for fixed connections (such as wire rope terminations).

Jaw Ends: U-shaped fork heads at both ends, used with pin shafts for stronger load-bearing capacity

3. How to choose the appropriate flower basket bolt?

Load requirement: The working load (WLL) must be greater than the actual tension, overloading is strictly prohibited!

4. The correct installation method of flower basket bolts

Connect both ends separately to the rope or structure that needs to be adjusted (such as screwing the left-hand end into the left-hand threaded joint).

Rotate the central adjustment ring clockwise to tighten and counterclockwise to loosen.

After adjusting to the appropriate tension, fix it with a locking nut or wire (to prevent loosening)!

5. Safety usage regulations

Overloading prohibited: Do not exceed the calibrated working load (WLL).

Avoid lateral force: Flower basket bolts are only designed for axial tension.