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TIME-SERT 5112D Big-Sert Metric Thread Repair Kit M11x1.25

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2.00 LBS
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  • For over size near surface 30mm head bolt thread repairs.
  • TIME-SERT 5112D Big-Sert Metric Thread Repair Kit M11x1.25


TIME SERT 5112D Big-Sert oversize thread repair kit M11x1.25 (short tooling). This is a second time repair when Helicoil or some other competitive brand has failed. It's typically used for repairs on some Nissan blocks where the head bolt threads start near the surface. If threads start further down the hole longer tooling will be needed, use Time Sert 11125BS kit.

Includes the Following




Tap Guide

Insert Installation Driver

Five (5) Steel Inserts 30mm length pn 51125


Question: What makes Time Sert so different than other kits that look similar?

Answer: The unique installation driver finishes the bottom threads (called cold rolling), expanding and locking the insert in from the bottom. No other competitive brand does this.


Mouse over the images above for a more detailed view of the kit components. Also notice our bulk discount prices on TIME-SERT replacement inserts for thread repair kits. Need more information on TIME-SERT thread repair kits? Visit our auto repair blog section on thread repair kits for tips, advice and all your thread repair questions answered. Just comment and we will be quick to respond.

See the pdficon-small.png TIME-SERT products pdf for more information on thread repair kits and inserts. Some are listed for certain applications on cars, trucks and motorcycles. The pdf is a partial application list so feel free to email or call if we can assist with your particular need. We also accept inquiries regarding our daily TIME-SERT specials. Remember TIME-SERT is recommended by leading car manufacturers like the General Motors Corporation. In fact TIME-SERT is GM's only authorized repair for head bolt threads.

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1 Review

  • 5

    Thicker inserts worked!

    Posted by Corie B on 2nd May 2022

    Used this when a Helicoil failed. This is a much more robust repair. I like how the insert gets locked in much better than other cheaper brands.

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