The Steel Turnbuckle consists of an elongated centre body, opposing threaded sections, and selected eye or hook terminals. Rotating the body changes the spacing between the terminals, allowing tension to be adjusted without replacing the rope connection. OO uses two closed eyes, CC uses two open hooks, and CO combines one of each for different access routines. The available range is M4-M30. Material choices include 304 stainless steel and a hot-dip galvanized option, while surface treatment is natural stainless steel or hot-dip galvanizing. Finished pieces are required to be smooth and free from burrs, with resistance to rust and long service life supported by strict control of stainless-steel raw materials.

Components

Part	Function
Centre body	Elongated open frame used for rotation and adjustment.
Opposing threads	Threaded sections that create axial movement as the body turns.
Eye terminals	Closed attachment points used in OO or CO arrangements.
Hook terminals	Open attachment points used in CC or CO arrangements.

Product Parameters

Parameter	Details
Specification	M4-M30
Material	304 stainless steel / hot-dip galvanized
Main Function	Tightening steel wire rope and other ropes; adjusting tension
CC Form	Used where disassembly is frequent

Product Advantages

• The open centre makes the adjustment mechanism visible and gives direct access for body rotation.

• Opposing threads alter the connection length from both sides, supporting controlled rope-tension correction.

• Three terminal codes separate connection access from material and finish selection.

• 304 stainless steel and hot-dip galvanized options cover two clearly identified surface requirements.

• Smooth, burr-free finishing improves handling around the body, threads, eyes, and hooks.

• The Steel Turnbuckle keeps its M4-M30 size range, rope-tightening function, and end-form selection easy to verify.

Quality Control

Third-party testing is available through Handan Xintai Testing Technology Co., Ltd. The listed capabilities cover tensile load, tensile strength, yield strength, elongation, hardness, bending, shear, proof load, impact, metallographic structure, thread decarburisation, torque, axial force, and wedge load. Chemical composition, neutral salt spray, surface coating, and comprehensive high-strength fastener testing are also included in the testing scope.