Turnbuckles / Jarum Keras

A turnbuckle is a common rigging device that is used to adjust tension and reduce slack in a rope, cable, or similar tensioning assembly.

Turnbuckles are a diverse product line that are used in a variety of applications across many different industries. They can be used in applications as simple as providing tension in a fence or perimeter cable, or something as complicated as the construction of a suspension bridge.