Jaw & Jaw turnbuckles feature a jaw end fitting on both ends. Jaws, the most highly stressed part of the assembly, endure normalizing or Crosby®"s Quenched and Tempered®
process to provide consistent performance for critical applications. Bodies are heat-treated by normalizing. Hot-dip galvanizing deposits a protective layer on components and helps prevent corrosion, extending both the service life and appearance of steel. Each body has UNC threads; a modified UNJ thread on the end fittings improves fatigue properties.
Forged jaw ends are fitted with bolts and nuts for 1/4" through 5/8", and pins and cotters on 3/4" through 2-3/4" sizes.
Each component contains the Crosby® logo, size, and Product Identification Code (PIC). Crosby®"s PIC system allows for traceability of each turnbuckle through the manufacturing process (from raw material to production), as well as helps ensure that proper controls are maintained.
to 20,000 cycles at 1-1/2 times the working load limit, and will meet the requirements of the Euronorm standards for fatigue.Proof load is 2-1/2 times the working load limit. Ultimate load is 5 times the working load limit.NOTE: For straight or in-line pull only.
Crosby® jaw-jaw turnbuckles meet or exceed all requirements of ASME B30.26, including identification, ductility, design factor, proof load, and temperature requirements. Also meet other critical performance requirements — including fatigue life, impact properties, and material traceability — not addressed by ASME B30.26.
The theoretical reserve capability of each turnbuckle is at least 5 times the working load limit set by Federal Speciﬁcations FF-T-791b, Type 1, Form 1, Class 7, and ASTM F-1145, except for those provisions required of the contractor.
We sell other styles of Crosby turnbuckles
, including Jaw & Eye
, Eye & Eye
, Hook & Eye
, and Hook & Hook