Tridair® Self-Broaching KEENSERTS® Inserts with Vespel® Locking Element

• High Temperature Tolerance for Hostile
  Environmental Applications

• Vespel Locking Element Provides High
  Reuseability

• Self-Broaching KEES Ease Installation into Hard
  Parent Material

  

• Insert may be removed and replaced with identical
  insert with no loss of strength or re-work of the hole

These new Tridair Self-Braoching KEENSERTS®
Inserts have a Vespel SP polymide resin locking element to provide an interference fit with the bolt at
the time of assembly. The Vespel material allows for high temperatures and multiple reuse. They have been tested to
6000F with an INCO 7-18 bolt loaded to 120 KSI stress
for 6 hours. And, after fifty repeated tests the minimum breakaway torque of the insert was still within the values of
MIL-I-45914 and other applicable specifications. The 420 CRES KEES ease installation into parent materials with Rockwell
hardness of RC44 or less.

Ordering Information

Material:

Insert:

A286 CRES per AMS5737, AMS5731

Locking KEES: 420CRES per QQ-S-763

Locking Element:

Vespel SP polymide resin

Finish:

Insert:

Passivated per QQ-S-35, with dry film lube

Heat Treat:

Insert:

Per MIL-H-6875 to 1400,000 PSI FTU minimum

Notes:

1. Unless otherwise noted, all dimensions are in inches.
2. See reverse side for Hole Preparation. Installation and
   Removal Data.
3. Inserts with Internal Thread “B” size .250 and below are
   furnished with two Self-Broaching KEES: all others are furnished with four.
4. Also available in metric sizes