Turnbuckles Eye – Eye Turnbuckles are rated with full thread engagement. Use caution to insure proper installation. “Rated Capacity” refers to a straight, zero degree pull. Pulling at an angle can reduce the rated capacity significantly. Meets specification FF-T-791b, Type 1, Form 1 – Class 4 Open length estimated dependent on how far out of full thread engagement at installation before take-up step. Design: Eye / Eye Material: 1045 Carbon Steel Process: Forged Finish: Hot Dipped Galvanized Threads: UNC Note: Smaller sizes may be electrogalvanized for better thread fit.