Galvanized and Stainless Steel Turnbuckles | AFT Fasteners

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Turnbuckles

A turnbuckle, also called a stretching screw or bottle screw, is a device used to adjust the tension or length of ropes, cables, tie rods, and other tensioning systems. The design normally consists of two threaded eye bolts (or hooks); one has a right-hand thread and the other has a left-hand thread. AFT has a large selection of hot dipped galvanized carbon steel and stainless steel turnbuckles with rated capacities up to 75,000 lbs. Our turnbuckle styles include: body only turnbuckles, jaw/jaw, eye/eye, eye/hook, eye/jaw, hook/hook, jaw/jaw and stub/stub turnbuckles. Overall length options start at 3-1/4” and go up to 85” (open length).Choose the length, material, and size you need, or contact us to request a quote. Our experienced sales team is available to help.

Turnbuckle Specifications

Eye/Eye Turnbuckle

UNC Threads. Meets specification FF-T-791b, Type 1, Form 1 – Class 4. Safety factor equals 2.5 rated capacity.

Eye/Hook Turnbuckle

UNC Threads. Meets specification FF-T-791b, Type 1, Form 1 – Class 6. Safety factor equals 2.5 rated capacity.

Eye/Jaw Turnbuckle

UNC Threads. Meets specification FF-T-791b, Type 1, Form 1 – Class 8. Safety factor equals 2.5 rated capacity.

Jaw/Jaw Turnbuckle

UNC Threads. Meets specification FF-T-791b, Type 1, Form 1 – Class 7. Safety factor equals 2.5 rated capacity.

Hook/Hook Turnbuckle

UNC Threads. Meets specification FF-T-791b, Type 1, Form 1 – Class 5. Safety factor equals 2.5 rated capacity.

Stub/Stub Turnbuckle

UNC Threads. Meets specification FF-T-791b, Type 1, Form 1 – Class 3 Safety factor equals 2.5 rated capacity.

Turnbuckle - Bodies

UNC Threads. Meets specification FF-T-791b, Type 1, Form 1 – Class 2. Safety factor equals 2.5 rated capacity.

Die Cast Turnbuckles (Eye/Eye, Eye/Hook, Hook/Hook)

UNC Threads. Die cast turnbuckles are not designed for lifting applications. There is no rated capacity.

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