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SHEAR-TYPE™ SYSTEM

  • Guard-Nut® SHEAR-TYPE™ fasteners insure precise torque control, and no-fault quality assurance. This cuts inspection time and insures specified clamp loads.

  • Unique Double Hex design with proprietary HEX-GUARD™, the plastic insert that permits torquing of drive head only. The Double Hex feature permits easy removal and re-use as a conventional fastener after drive head has been sheared off. (Also available in single hex design without HEX-GUARD™ for more permanent, economical installations.

  • Guard-Nut's specially engineered 360 degree prevailing torque locking thread design enables accurate and repeatable locking torque. All torque limiting fasteners available with left hand threads.

  • All Guard-Nut® SHEAR-TYPE™ fasteners are available in screw and bolt type configuration.

FEATURES

ROLLOVER TORQUE LIMITING NUT
ROLLOVER
ROLLOVER
ROLLOVER
ROLLOVER
ROLLOVER
ROLLOVER
ROLLOVER
ROLLOVER

SERIES 78 , 79, 80

  • SHEAR-TYPE™ Multi-Purpose Fastener—Vibration resistance and torque control—all in one fastener.
  • Available in nut , screw or bolt configuration
  • Superior proprietary metal to metal locking system ( Series 78 nut )
  • Permits optimum clamp load and vibration resistance without galling ( nut )
  • Breakaway head
  • Various head designs
  • Available plastic security seal collar
  • Optional Loctite® or similar locking additives on threads
  • HEX-GUARD™ wrench stop ( with double hex-nut )
  • All certified controls are built into the fastener during the manufacturing procedure
  • Ideal for critical joints and field service where no fault is essential

 

TORQUE LIMITING NUTS

SERIES 78
Single hex
cone shaped
lock nut

SERIES 78
Double-Hex
lock nut with
HEX-GUARD™

SERIES 80
Double-Hex
nut with red plastic security seal collar
SERIES 79
Double-Hex
nut with
HEX-GUARD™
SERIES 79
Double-Hex
half nut with
HEX-GUARD™
SERIES 79
Single hex half nut

GNI fastening and sealing designs are protected by various U.S. & Foreign patents. 
Guard-Nut, Shear-Type, Hex Guard, Button seal, Torque Limiter are registered U.S. trademarks.

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