Timesert Thread Repair For Oversized Holes

BIG-SERT ® PROFESSIONAL THREAD REPAIR KITS OVERSIZED HOLES

THREAD REPAIR KIT

BIG-SERT® OVERSIZED THREAD REPAIR KITS AND INSERTS

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 simular coil style insert that has failed.

 

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.

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.

KIT CONTENTS:

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

 

BIG-SERT ® THREAD REPAIR KITS AND INSERTS

NOTE: Lengths marked in RED are the inserts supplied in the kits.
Click here: for Engineering data

 


INCH
METRIC
KIT SIZE
PART NO.
INSERTS
 
KIT SIZE
PART NO.
INSERTS
 
LENGTH
INCHES
PART
NO.
LENGTH
mm
PART
NO.
10-32
5032S
.187
50324
M5x0.8
5508
7.6
10.0
55081
55083
1/4-20
5420
.380
.500
54201
54203
1/4-28
5448
.380 
.500
54481
54483
M6x1.0
5610
9.4
12.0
56101
56103
5/16-18
5561
.450 
.620
55611
55613
M8x1.25
5812
11.7
16.2
18.0 
58121
58123
58125
5/16-24
5562
.450
.620
55621
55623
M10x1.0
5011
9.0
15.0
50111
50113
3/8-16
5381
.400
.520

.750
1.000
1.250
53810
53811 53813
53815
53817
M10x1.25
5012
14.0
20.0
24.5 
50121
50123
50125
3/8-24
5382
.520
.750
53821
53823
M10x1.5
5015
9.4
11.0

14.0

20.0
24.5
30.0
50150
50157
50151
50153
50155
50159 
7/16-14
5761
.600
.870
1.000
1.250
57611
57613
57615
57617
30.0
51125
7/16-20
5762
.600
.870
57621
57623
M12x1.5
5215
9.2
16.2

24.0
30.0
52150
52151
52153
52155
1/2-13
5121
.480
.650

1.000
51210
51211
51213
M12x1.75
5217
12.0
16.2

24.0
30.0
52170 52171
52173
52175
1/2-20
5122
.650
1.000
51221
51223
M12x1.25
5212
9.0
15.0

17.5 
24.0
30.0
52120
52121 
52122
52123
52125
       
M11x2.0
M11x1.5
5120
1115BS
30.0
30.0

37004
J-507BS

Optional tool
 
TAP GUIDES INSURE THAT THREADS ARE SQUARE TO SURFACE.

The lower portion of the tap guide should remain as square as possible to the engine surface.
Turn the tap slowly while making sure the guide remains flush.
 

TAP GUIDES

INCH SIZE PART NO.
1/4-20 75405
1/4-28 75405
5/16-18 75515
5/16-24 75515
3/8-16 75315
3/8-24 75315
7/16-14 57655
7/16-20 57655
1/2-13 75115
1/2-20 75115



METRIC SIZE PART NO.
M6x1.0 75605
M8x1.25 75825
M10x1.0 75025
M10x1.25 75025
M10x1.5 75025
M12x1.25 75255
M12x1.5 75255
M12x1.75 75255





 

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