BIG-SERT ® PROFESSIONAL THREAD REPAIR KITS OVERSIZED HOLES

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.

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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

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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

Length Inches        Part No.

Kit Size      Part No.

Inserts

Length Inches        Part No.

 10-32      http://www.timesert.com/az/Aa2.jpg   5032S

.187                    50324

M5x0.8  http://www.timesert.com/az/Aa2.jpg  5508

7.6                   55081

10.0                   55083

1/4-20     aa2   5420

.380                   54201

.500                   54203

M6x1.0   http://www.timesert.com/az/Aa2.jpg  5610

  9.4                   56101

12.0                  56103

 1/4-28    aa2    5448

.380                   54481

.500                   54483

M8x1.25  http://www.timesert.com/az/Aa2.jpg  5812

11.7                  58121

16.2                   56103

18.0                   58125

5/16-18     aa2   5561

.480                   55611

.620                   55613

M8x1.0  http://www.timesert.com/az/Aa2.jpg  5810

11.7                   58101

5/16-24    aa2    5562

.450                   55621

.620                   55623

M10x1.0   http://www.timesert.com/az/Aa2.jpg  5011

9.0                   50111

15.0                   50113

3/8-16    aa2    5381

.400                   53810

.520                  53811

.750                    538131

1.000                   53815

1.250                   53817

M10x1.25   http://www.timesert.com/az/Aa2.jpg  5012

14.0                   50121

20.0                   50123

24.5                   50125

3/8-24   aa2    5382

.520                   53821

.750                   538123

M10x1.5   http://www.timesert.com/az/Aa2.jpg  5015

9.4                    50150

11.0                   50157

14.0                   50151

20.0                  50153

24.5                   50155

30.0                   50159

7/16-14    aa2    5761

.600                   57611

.870                   57613

1.000                   57615

1.250                   57617

30.0                   51125

7/16-20   aa2     5762

.600                   57621

.870                   57623

M12x1.5   http://www.timesert.com/az/Aa2.jpg    5215

9.2                   52150

16.2                   52151

24.0                    52153

30.0                    52155

1/2-13    aa2    5121

.480                   51210

.650                   51211

1.000                   51213

M12x1.75   http://www.timesert.com/az/Aa2.jpg   5217

12.0                    52170

16.2                    52171

24.0                   52173

30.0                    52175

1/2-20    aa2    5122

.650                   51221

1.000                   51223

M12x1.25   http://www.timesert.com/az/Aa2.jpg   5212

9.0                   52120

15.0                    52121

17.5                    52122

24.0                    52123

30.0                    52125

Optional Tool

TAP GUIDES ENSURE THAT THREADS ARE SQUARE TO SURFACE

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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