Meets the performance requirements of Federal Specifications FF-T-791b, Type 1, Form 1, Class 4, and ASTM F-1145, except for those provisions required of the contractor
End fittings are Quenched and Tempered or Normalized, bodies heat treated by normalizing
Hot Dip galvanized (except for smallest sizes)
Turnbuckle eyes are forged elongated, by design, to maximize easy attachment in system and minimize stress in the eye--for turnbuckle sizes 1/4" through 2-1/2", a shackle one size smaller can be reeved through eye
Modified UNJ thread on end fittings for improved fatigue properties
Body has UNC threads
TURNBUCKLES RECOMMENDED FOR STRAIGHT OR IN-LINE PULL ONLY
Lock Nuts available for all sizes
Fatigue rated
Turnbuckles can be furnished proof tested or magnaflux inspected with certificates if requested at time of order
Meets or exceeds all requirements of ASME B30.26 including identification, ductility, design factor, proof load and temperature requirements; importantly, these turnbuckles meet other critical performance requirements including fatigue life, impact properties and material traceability, not addressed by ASME B30.26