Thread Repair Services
Pear Tree Engineering


Removal of

Broken bolts and studs

Glow plugs and Injectors



Repair damaged internal threads

Mobile service available

Sale of repair kits and inserts

  Home   Damaged Threads  

Broken Studs Drills,
Taps and Extractors


Glow Plugs and Injectors

  Contact Us  

Metric - Fine, Medium and Coarse, UNC, UNF,  BSP, BSW, BSF,  it is also possible to reclaim some left hand threads.
We carry an extensive range of threaded inserts, both wire (Helicoil) type and Time-Serts.

If a thread has been previously repaired, as long as there is enough material around the problem area, it can be repaired using
big-serts to get the thread to its original specification, eg, on pulled Helicoils, worn or over drilled holes.

We use Recoil, Helicoil and Timesert products for our thread repairs as they are all made to very high specifications,

We can carry out the repair on site at the customer's premises,
 or in our workshop on items sent to us.

We sell Wurth Timesert Kits ane EZ-Lok Inserts