Tridair Structural Panel Fasteners

Live Lock Structural Panel Fasteners

Provide high-strength, quick operation and exceptionally high cycle for use on high performance aircraft, on elctronic,
and on avionic

applications. There are many more types and styles available which are not featured in this catalog.

Contact the Technical Sales Group.

Features:

• Low prevailing installation and removal torques required, yet
  provides high vibration resistance.
• Receptacles offer radial float; most versions can be replaced
  without removing rivets.
• Positive stud nut retention.
• Stud nut hold-out featrue available.
• Locking element is totally encapsulated.
• Total CRES (corrosion resistant) configurations
  available.

Typical Live Lock Fastening System:

Exploded View

Not shown are optional stud hold-out grommets and cages designed for applications where stud hold-out and
bottom flush condition is required. Shims are also available if required.

Index

Locking Mechanism Design Principle: Spring Loaded Ratchet Plates.

Typical Installation

Spring-loaded ratchet design insures positive locking action and vibration resistance without relying on
prevailing torque. Spring(s) nullify effects of resonant vibrations.

Fairchild Fasteners

Tridair Products 2

SELECTOR GUIDE/INDEX

1. 2 LIVE LOCK

   

   For high performance aircraft and electronic applications.

   • Spring-loaded ratchet design insures positive locking
     action and vibration resistance without relying on prevailing torque.
   • Exceptionally high cycle life.
   • Quad lead thread permits rapid installation and
     removal.
   • Positive stud nut retention and some versions feature hold
     out to facilitate curved door handing.
   • Receptacle offers radial float to accomodate misalignment
     and some versions can be removed without removing rivets.
   • Nominal thread size range: .1120-40 through
     .2500-28.
   • Encapsulated receptacle makes Live Lock an excellent
     candidate for electronic and avionic applications.

2. 33 MARK IV FASTENERS

   Assure ultimate reliability for high performance aircraft.

   

   • Patented Flat Beam Lock Nut design for excellent
     resistance to vibration-induced loosening.
   • Positive stud hold-out version is excellent for composite
     material applications.
   • Multiple lead thread for quick operation.
   • Up to 1,500 seated cycle life locking feature for
     exceptionally high reusability.
   • Available in various nominal stud diameters; the .250 and
     .375 inch diameters are featured in this catalog.
   • Receptacle provides radial float to accomodate
     misalignment and can be replaced without removing rivets.
   • Positive stud bolt retention; versions also available with
     positive hold-out to facilitate curved door handling.

Fairchild Fasteners Tridair Products 1