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Internet # 304617848

Model # SK20515

Store SKU # 1003007539

E-Z Coil Thread Repair Kit - Standard - #8-32 tpi; .25 in. Installed Length

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  • Helps reinforce or repair tapped holes in soft metals efficiently
  • Stainless steel inserts provide internal threads that resist rust
  • Set includes threaded inserts, STI tap, drill, and more
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Product Details

About This Product

E-Z Coil inserts, also known as wire or helical threaded inserts, quickly repair or reinforce tapped holes in soft metals. E-Z Coil Inserts are made from 18-8 stainless steel wire. This provides strong internal threads that are corrosion resistant and withstand temperatures to 800°F.

Highlights

  • Standard kits include threaded inserts, drill, STI tap, installation and tang break tools
  • E-Z coil inserts are made of 18-8 stainless steel wire, the wire is formed into a diamond pattern and then wound into a spring, before being installed, the insert diameter is larger than the tapped hole, the insert diameter is reduced during installation, allowing the insert to thread into the hole once properly installed, the radial pressure of the released insert holds the insert firmly in place
  • Quickly repair damaged threads in soft metal
  • Protect tapped holes from stripping and wear
  • Return Policy
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Product Information

Internet # 304617848

Model # SK20515

Store SKU # 1003007539

Additional Resources

Shop All E-Z LOK

Specifications

Dimensions: H 9 in, W 5 in, D 1.5 in

Dimensions

Assembled Depth (in.)

1.5 in

Assembled Height (in.)

9 in

Assembled Width (in.)

5 in

Fastener Length (in.)

0.246 in

Details

Color Family

Metallics

Fastener Type

Specialty Fastener

Pack Size

1

Product Weight (lb.)

0.25 lb

Returnable

90-Day

Warranty / Certifications

Manufacturer Warranty

E-Z LOK warrants that the goods supplied shall conform to the stated description. All other warranties, expressed or implied, are hereby disclaimed. E-Z LOKs liability is limited solely to the replacement of defective goods. Warranty claims must be made within 30 days of delivery

Questions & Answers

What application would I need for a 8-40 x 0.254 screw? Thank you!
ByFeb 28, 2025
1 Answer | 
Answer This Question

Hello, thank you for contacting E-Z LOK. Unfortunately, we sell only threaded inserts, so we are unable to help with questions about screws.

By|Feb 28, 2025


    Will it work on my bike pedal arm?
    ByJan 13, 2025
    1 Answer | 
    Answer This Question

    E-Z LOK inserts required a tapped (threaded) hole for installation, so the material needs to be thick enough to be threaded the full length of the insert.

    By|Jan 14, 2025


      This is likely a dumb question, but I'm going to ask anyway. Can I utilize this product for my stripped out spark plug holes in my Ford?
      ByJan 23, 2024
      1 Answer | 
      Answer This Question

      If your spark plug screws into a 1/4-28 thread, you can use this insert for the repair.

      By|Aug 18, 2024

        (1)

        When you choose which E-Z Coil to purchase, do I use the size of the finished thread I need?
        ByJul 26, 2022
        2 Answers | 
        Answer This Question

        Choose the E-Z Coil size that matches your screw/bolt size. If you intend to use an M6-1.0 fastener, select the M6-1.0 E-Z Coil kit.

        By|Jul 26, 2022

          Believe so you'll be drilling that out And putting the Healy coil in there And your original bolt should thread in. I used it on my transmission In 3 spots to fasten on my is my trans pan. it worked great. Don't forget to use the guide so you don't drill too far.

          By|Jul 28, 2022


            Will this work on 9/16 thread
            ByApr 22, 2022
            1 Answer | 
            Answer This Question

            No. These inserts are designed to repair a tapped hole and accept an M10-1.25 bolt.

            By|Apr 22, 2022


              How do you know what size bolt this kit is used for?
              ByDec 7, 2021
              1 Answer | 
              Answer This Question

              This kit is for use with a 6-32 bolt.

              By|Dec 8, 2021


                For a 6 mm screw which setup I need?
                ByMay 7, 2021
                1 Answer | 
                Answer This Question

                E-Z Coil kit SK40615 is designed for use with M6-1.0 screws.

                By|May 7, 2021


                  Is the inner diameter of the insert for 8-32 screws, or is the outside diameter of this 8-32?
                  ByFeb 4, 2021
                  1 Answer | 
                  Answer This Question

                  The inner diameter accepts 8-32 screws.

                  By|Feb 5, 2021


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                    Customer Reviews

                    4.4 out of 5

                    • 4.4 out of 30 reviews
                    • 60% recommend this product
                    Filter by:
                    Showing 1-10 of 30 reviews
                    This customer chose to rate the product and not provide text.
                    by
                    • Verified Purchase
                    Best way to cut new machine screw threads. Reasonable price...
                    Best way to cut new machine screw threads. Reasonable price and they work.
                    by
                    • Verified Purchase
                    This helped me repair a stripped nut in my new...
                    This helped me repair a stripped nut in my new patio furniture.
                    by
                    • Verified Purchase
                    Aluminum block engine good for repairing damage fine threads M10 1.25
                    Affordable and comes with all the tools required to complete the job.
                    by
                    • Verified Purchase
                    • Recommended
                    Needed it to repair a thread in my aluminum cylinder...
                    Needed it to repair a thread in my aluminum cylinder head. Never done it before... Cars is still running fine so these hold up and was simple enough for myself to do it.
                    by
                      Purchased this kit to repair a single thread for a...
                      Purchased this kit to repair a single thread for a valve cover attaching to an aluminum cylinder head. While the idea of doing this kind of job is intimidating, I watched a few youtube videos beforehand and took my time with the drilling and tapping. When reassembling the valve cover, I accidentally stripped two more threads. I was able to repair those threads as well and was able to complete the job with several coils left over. While the kit is a good value, a tap wrench is strongly recommended. I used the up to 0.5 inch size for this application and it worked well.
                      by
                        This customer chose to rate the product and not provide text.
                        by
                          I have done this Leave me alone...
                          I have done this Leave me alone
                          by
                          • Verified Purchase
                          1 found this review helpful
                          A lifesaver. worth every penny....
                          A lifesaver. worth every penny.
                          by
                          • Verified Purchase
                          easy to use and worked well for my project of repairing existing threads. Drilled out hole with p...
                          easy to use and worked well for my project of repairing existing threads. Drilled out hole with provided bit, used included tap and inserted coil inserts. The tap needs to be used with a tap handle.
                          by
                          • Verified Purchase
                          • Recommended
                          Showing 1-10 of 30 reviews