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TAMPER-PROOF ™SYSTEM

  • The Guard-Nut® tamper-proof fastening system is the proven solution to the constant battle against theft, vandalism and unauthorized entry.

  • Guard-Nut's exclusive design, free-turning protective sleeve and torque limiting breakaway head is a combination that is hard to beat.

  • No special tools are required for installation. Available in nut, screw and bolt configurations, the Guard-Nut system can be tailored to meet any material, finish, torque limiting or level of security specification.

  • All tamper-proof nuts, bolts, and screws available with left hand threads.

  • Tamper-proof fasteners that employ a standard protective sleeve may be removed with a *special removal tool

FEATURES

ROLLOER TAMPER-PROOF NUT
ROLLOER
ROLLOER
ROLLOER
ROLLOER
ROLLOER
ROLLOER

SERIES 77, 74

  • Most economical security nut
  • Conical shaped nut ( lock nut on series 74 )
  • Breakaway hex head
  • Accurately controls torque
  • Proprietary metal to metal lock design resists galling to insure optimal clamp load ( series 74 )
  • Optional Loctite® or similar locking additives on threads
  • Vibration resistance

 

SERIES 77, 74 NUTS

SERIES 77
Conical shaped security nut
with breakaway hex head
SERIES 74
Modified conical shaped security lock nut
with breakaway hex head


SERIES 75

  • Higher security level nut
  • Unique shaped nut
  • Breakaway hex head
  • Accurately controls torque
  • Surrounded by a free turning protective sleeve
  • May be removed with *special removal tool
  • Optional Loctite® or similar locking additives on threads
  • Optional highly visible red acrylic security seal sleeve ( destroyed if tampered with )

 

SERIES 75 NUTS

SERIES 75
Unique shaped security nut
with protective sleeve and breakaway hex head


SERIES 90

  • Highest security nut available
  • Unique shaped nut
  • Breakaway hex head
  • Accurately controls torque
  • Surrounded by aconical, grip resistant, free turning protective sleeve
  • Optional Loctite® or similar locking additives on threads

 

SERIES 90 NUTS

SERIES 90
Unique shaped security nut
with conical, grip resistant, protective sleeve
and breakaway hex head


SERIES 79

  • High security bolt/screw
  • Tamper-resistant head configurations will ward off the most determined attacks
  • Available with conical, round, button, or flat head design
  • Breakaway hex head
  • Accurately controls torque
  • Optional Loctite® or similar locking additives on threads

 

SERIES 79
Conical shaped security bolt with breakaway hex head

SERIES 79
Round shaped security bolt with breakaway
hex head

SERIES 79
Button head security bolt with breakaway hex head
SERIES 79
Flat head counter sunk security screw with breakaway hex head
SPECIAL
Modified button head screw with slab sides (to allow for removal) and breakaway hex head


SERIES 76

  • High security bolt/screw with tamper evident protective free turning sleeve
  • Unique shaped head
  • Breakaway hex head
  • Accurately controls torque
  • Surrounded by a free turning protective sleeve ( tapered sleeve optional, non-removable)
  • May be removed with *special removal tool
  • Optional highly visible red plastic security seal sleeve ( destroyed if tampered with )
  • Optional Loctite® or similar locking additives on threads

 

SERIES 76 BOLTS

SERIES 76
Unique shaped security
head with free turning protective metal
sleeve and breakaway
hex head
SERIES 76
Unique shaped security
head with free turning red plastic
security sleeve seal and breakaway
hex head


TOP BUTTON

* Contact GNI for more info

Guard-Nut, Shear-Type, Hex Guard, Button seal, Torque Limiter are registered U.S. trademarks.

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