Helicoil Thread Repair Kit

Aluminum heads require strong threaded connections to keep an engine functioning correctly. The soft nature of aluminum allows threads to pull from their base material when under the strain and pressure of an operating engine.

When threads strip from connecting points of an aluminum head, new — stronger — threads need to be installed to ensure the heads remain securely attached to the engine block. An installed HeliCoil threaded insert provides a secure threaded connecting point for accessories on engines with aluminum heads.

What is a Helicoil?

A HeliCoil is a coiled-wire type of thread repair insert used to create internal screw threads to accommodate standard-sized fasteners. Some of the advantages of using a Helicoil include…

Thread Size Range

A large range of available thread diameters allow for use in a variety of thread repair applications. According to published data, inserts are available as small as a #2 screw size, and as large as 1 1/2″ diameter. Corresponding metric sizes are also available.

Thread Type Selection

Inserts are available in various thread type and pitch configurations including UNC, UNF, Metric Coarse Pitch and Fine Pitch, UNEF, UNS, and Pipe Thread. Each insert is offered in several different length options.

Material Options

Several material choices are available including Stainless Steel, Phosphor Bronze, Inconel X, Nitronic 60, and Titanium. A selection of finish coatings is also offered.

Best Threaded Insert Repair Kit of 2021:

1. HHIP 1011-Series Helical STI Thread Repair Kit

HHIP 1011-Series Helical STI Thread Repair Kit

The HHIP 1011-Series Helical STI Thread Repair Kit is available in specific Fractional and Metric thread sizes per each kit. Each kit includes the appropriate HSS drill bit and Tap plus a Coil Driver and a Tang Breaker. Each component is nicely arranged in a metal case with a latch for secure storage.

The HHIP 1011-Series Helical STI Thread Repair Kit is an excellent cost-effective option if you are in the machine shop, commercial HVAC, millwright, or general maintenance business. Or for anyone in need of an inexpensive solution to repair a damaged thread.

You can select a kit with the specific thread size that requires repair as-needed or to keep one on hand for future thread repairs.

2. CO-Z 131 pc Stripped Thread Repair Kit

CO-Z 131 pc Stripped Thread Repair Kit

The CO-Z 131 pc Stripped Thread Repair Kit is ideal for repairing damaged or stripped threads that cannot be restored. With recoil screw thread inserts ranging in sizes from M5 to M12 plus all the tools necessary to do a complete installation this is a versatile set to have on hand.

The quality of the tools in this kit is good and the coils are made from stainless steel so they will create a strong, long lasting thread repair.

I recommend the CO-Z 131 pc Stripped Thread Repair Kit for general machine shop, auto repair, farm equipment, commercial HVAC, plant maintenance, and DIY home repair projects.

3. E-Z Lok Helical Threaded Insert Kit

E-Z Lok Helical Threaded Insert Kit

E-Z Lok Helical Threaded Insert Kits are a cost-effective option when only one size thread needs to be repaired. This SERIES of E-Z Lok Sets is available in SAE Number sizes #4 to #12 Coarse and Fine series and 1/4″ to 3/4″ Fractional Coarse and Fine Series. NOTE: only ONE thread size per set.

There are 5 to 10 Helical inserts per set depending on which thread size and series option you select plus a choice of insert lengths. A size-specific combination Insert Tool that doubles as a Tang Break Tool in included with each set. The appropriate STI Tap is also included.

However the proper tap drill must be supplied by the user as noted in the included instructions. Refer to: STI Helical Coil Drill Size Chart, If you don’t own a set of drill bits, visit Best HSS Drill Bit Sets. The only other tool you will need to install a helical insert is a Tap Wrench.

4. AKM 261Pc Thread Repair Kit

AKM 261Pc Thread Repair Kit

Sae&Metric: The Kit Has Altogether 261 Pieces Including Insert Installations, Wire Thread Inserts, Twist Drill Bits, Thread Taps, Lug Breaking Tools That Allow You To Have A Smooth Repairing Experience.all Made According To Professional Standard.

This Thread Repair Kit Is Used To Repair Or Replace Damaged Or Stripped Internal Screw Threads.suitable For Engine Repair And Other Automotive Applications.

Don’t Bother To Spend A Lot Of Money On A Variety Of Models,All You Need Is Our Kit.once For All.

Creates Stronger Internal Thread In Soft Materials.also Come With Detailed Instructions.note:please Read The Listing Carefully,This Kit Doesn’t Include The Adjustable Die Wrench Like Others ,If You Want A Die Wrench You Can Choice Our Sae Type:b09Bmpjdb7.

All Tools Were Packed In A Convenient Carrying Case, Easy And Fast In Collecting And Placing The Tools. Each Accessory Has Its Place, Inserts Will Even Be Packaged In Separate Boxes.

5. HORUSDY 131Pc Thread Repair Kit

HORUSDY 131Pc Thread Repair Kit

Ideal For Restoring Damaged Threads, Suitable For Engine Repair And Other Automotive Applications, This Thread Repair Kit Is Used To Repair Or Replace Damaged Or Stripped Internal Screw Threads.

The Kit Has Altogether 131 Pieces, All Made According To Professional Standard. Lt Has One Hss Tap For Each Size, One Hss Drill For Each Size, 2 Insert Tools For Each Size, Thread Inserts For Each Size, All Come Complete In A Handy Storage Case.

All Tools Were Packed In A Convenient Steel Carrying Case, Ease And Fast In Collecting And Placing The Tools.

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