Polyfab Pro™ Turnbuckle Jaw & Jaw 5/16" (8mm)(Stainless Steel)

SKU: 120159



The Polyfab Pro™ Turnbuckle is a versatile hardware component and can be used to tension wire between two end points like in lifelines or wire-hung canopies as well as between hardware pieces on tension structures like shade sails. This turnbuckle features an open body, with jaws on both ends, so both sides are easy connection points, even for hardware without an opening.

This piece is made from Type 316 stainless steel by Polyfab USA, a world-leading producer of high-quality hardware for shade sail applications. Sailrite recommends using Permatex® Anti-Seize Lubricant on the threads to minimize thread galling.

Working Load Limit: 1,212 pounds (550kg)

Breaking Load: 4,850 pounds (2,200 kg)

Threaded for Size: M8

Please Note: When installing this shade sail hardware as a part of your application, it is your responsibility to make sure the finished structure is built in accordance with local building codes and that, given those codes, the proper hardware is being used.


  • 100% AISI 316 Marine Grade Stainless Steel
  • Standard Safety Factor for Working Load is 1/4 of Breaking Load