Turnbuckle

Turnbuckle, also known as Stretching screw or Bottlescrew, is a versatile rigging device used to adjust tension and reduce slack in ropes, cables, or similar tensioning assemblies. Whenever gradual adjustment of slack is needed, turnbuckles come into play. These threaded metal couplings connect and adjust the length of ropes, tie rods, cable lines, and more. By increasing or decreasing the length, turnbuckles ensure precise tension control, making them essential for various applications in construction, marine, and industrial settings.