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Big-Sert Thread Repair Kits
Pear Tree Engineering

We accept Visa and Master Card


Wurth Bigsert oversized thread repair kits

Used for threads which have been previously repaired and failed.

These kits will repair holes that were repaired by helicoil, perma-coil,
uni-coil, recoil or any other similar coil style insert that has failed.

NOTE: Bottom few internal threads are incomplete.
The install driver seats the insert and completes the bottom internal threads locking the insert in place.
This pushes the pin out to contact the threaded hole. Back out of the insert is prevented by the cam lock effect of the pin.

BIG-SERT® is a heavy wall solid bushing, easy to install with positive placement.

BIG-SERT® gives increased load protection for critical use.

BIG-SERT® will repair oversize holes which have previously been repaired

 

KIT CONTENTS:

  • Drill
  • Counterbore
  • Tap
  • Insert Driver
  • Five (5) Steel Inserts

kits available and inserts data

Big Sert Kits are at the moment special orders- Please CONTACT US for up to date prices and delivery times.

 
Insert
METRIC

KIT SIZE

PART NO    
 
M5x0.8
5508      
M6x1.0
5610 £94.55  
M8x1.25
5812 £93.39    
M10x1.0
5011 £103.95    
M10x1.25
5012 £167.51    
M10x1.5
5015 £103.89  
M11x1.25
not for deep holes
5112D      
M12x1.5
5215      
M12x1.75
5217      
         
Insert
INCH
KIT SIZE
PART NO.
       
10-32
5032S
       
1/4-20
5420
£106.31      
1/4-28
5448
£127.59      
5/16-18
5561
       
5/16-24
5562
       
3/8-16
5381
       
3/8-24
5382
       
7/16-14
5761
       
7/16-20
5762
       
1/2-13
5121
       
1/2-20
5122
       

Comparison Charts, Standard Metric and Imperial with Decimal and Fractional Equivalents

 

Please note, we do not collect any personal data,
names, addresses, Emails or Bank details on this site.

 

CONTACT US
 66, Thurlow,
Lowton, Warrington,
WA3-2QN
01942-665546
sales@threadrepairkits.co.uk

OFFICE HOURS
Mon, - Fri. 9:00 am  to  5:30 pm
Sat, 9:30 am  to  12:30 pm
Sunday CLOSED