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Item #:
35237655
E-Z Lok EK21215 Helical Threaded Insert Kit, 304 Stainless Steel, 1/2"-13 Thread Size, 0.750" Installed Length (Pack of 5)
90% of respondents would recommend this to a friend
Item #:
35237655
XCD 142
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
In stock
Imported from USA store
QTY:
Only 1 item left in stock.
Order now and get it around Friday, October 09
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Quickly repair damaged threads or reinforce tapped holes in soft metals with this helical thread repair kit.
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What Stands Out
Durable Material
Constructed from 304 stainless steel, these inserts offer exceptional corrosion resistance, ensuring long-lasting performance in various environments and extending the life of your projects.
Helical Design
The helical threading provides superior torque strength, enabling secure fastening and preventing loosening over time, making it perfect for high-stress applications.
Easy Installation
This kit includes all necessary components for quick assembly, allowing users to easily repair or reinforce threaded holes without extensive tools or expertise.
Product Details
| Size Name | 1/2"-13 Thread Size, 0.750" Installed Length |
| Item Dimensions | 1 x 1 x 1 inches (2.5 x 2.5 x 2.5 cm) |
| Item Diameter | 0.75 inches (1.91 cm) |
| Number of Pieces | 5 |
| Outside Diameter | 0.75 inches |
| Screw Head Style | Hex |
| Thread Size | 1/2"-13 |
| Compatible Groove Diameter | 0.41 inches |
| Maximum Shear Strength | 31 ksi (213.5 MPa) |
| Grade Rating | 304 |
| Color | Silver |
| Item Shape | Hexagonal |
| Material Type | Stainless Steel |
| Finish Types | Passivated |
| Brand | E-Z LOK |
| Fastener Type | E |
| Global Trade Identification Number | 00847554004333 |
| Unit Count | 5 Count |
| Number Of Items | 5 |
| Set Name | Helical Threaded Insert Kit (5 Piece) |
| Manufacturer | E-Z LOK |
| UPC | 847554004333 |
| Included Components | Inserts, Tap, and Combo Install/Tang Break Tool |
| Item Weight | 0.27 g |
| Model | EK21215 |
| Part Number | EK21215 |
| Size | 1/2"-13 Thread Size, 0.750" Installed Length |
| Material | Stainless Steel |
| Item dimensions L x W x H | 1 x 1 x 1 inches (2.5 x 2.5 x 2.5 cm) |
What's in the box
Inserts, Tap, and Combo Install/Tang Break Tool
Who Should Buy?
-
DIY Enthusiasts
Ideal for hobbyists and DIY projects requiring durable threaded solutions for materials like wood and metal.
-
Repair Professionals
Engineers and technicians can use these inserts for reinforcing stripped threads in mechanical components effectively.
-
Metal Fabricators
Perfect for fabrication shops needing reliable, robust inserts for complex assemblies and precision work.
-
Casual Users
Not suitable for those with no experience in using threaded inserts or performing repairs effectively.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What materials can I use the thread repair kit on?
Answer: The kit is designed for soft metals such as aluminum, cast iron, and magnesium. -
Question:
What is the temperature resistance of the stainless steel inserts?
Answer: The inserts can withstand temperatures up to 800°F. -
Question:
Does the kit come with installation tools?
Answer: Yes, the kit includes a threaded insert installation tool and a STI tap.
E-Z LOK Helical Threaded Inserts Editorial Review
The E-Z Lok EK31310 Helical Threaded Insert Kit is a good quality kit that works well for repairing worn-out threads in a range of materials. The kit contains a tap, inserts, and a reamer, which are all made from high-quality materials that are designed to last. The tap is pretty close to a bottoming tap and the inserted length is around 1/2." While some customers have experienced difficulties with the kit, overall, it appears to be a good purchase for those looking to repair damaged threads. It is especially useful when you have stripped a threaded hole that could be expensive to replace, as it allows you to repair the hole and reuse the part, saving you a lot of money.
Customer Reviews & Ratings
270 customers ratings
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5 Star
68%
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4 Star
12%
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3 Star
6%
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2 Star
7%
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1 Star
7%
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Pros
- Good quality product
- Works well in repairing damaged threads
- Contains tap, inserts and a reamer
Cons
- The tap may not work for all threaded inserts
Platform Trust & Buyer Confidence
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Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
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Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
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Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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XCD 142
Order now and get it around Friday, October 09
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Only 1 item left in stock.
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PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
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Fastest cross-border delivery
Features & Benefits
- E-Z Lok offers a reliable solution for repairing damaged threads.
- The kit includes 18-8 stainless steel inserts that resist corrosion.
- Designed for soft metals like aluminum and cast iron.
- Helical thread design ensures strong and durable repairs.
- Convenient kit comes with a STI tap and installation tool.
- Ideal for quick and effective reinforcement of threaded holes.
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