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🔧 Fix it once, fix it right — the ultimate thread rescue kit!
The Symphonyw Thread Repair Insert Kit offers 60 high-quality 304 stainless steel helicoil inserts in sizes M3 to M12, designed to restore and reinforce damaged threaded holes. Its locking wire sleeve design prevents screw loosening under vibration, while the elastic construction evenly distributes load to enhance thread strength and fatigue resistance. Ideal for automotive, machinery, and furniture repairs, this kit delivers durable, cost-effective thread restoration with professional-grade reliability.
| ASIN | B07GLFXTLD |
| Best Sellers Rank | 111,579 in DIY & Tools ( See Top 100 in DIY & Tools ) 121 in Nut Inserts |
| Brand | Symphonyw |
| Brand Name | Symphonyw |
| Country Of Origin | China |
| Customer Reviews | 4.5 out of 5 stars 222 Reviews |
| Drive System | Slotted |
| Exterior Finish | Stainless Steel |
| Exterior finish | Stainless Steel |
| Fastener Size | M3, M4, M5, M6, M8, M10, M12 |
| Fastener Type | Insert, Lock |
| Head Type | Socket |
| Head style | Socket Cap |
| Item Diameter | 10 Millimetres |
| Manufacturer | Symphony |
| Manufacturer Part Number | Symphony |
| Material | Stainless Steel |
| Material Type | Stainless Steel |
| Metal | Stainless Steel |
| Metal type | Stainless Steel |
| Number of Pieces | 60 |
| Screw Head Style | Socket Cap |
| Set Screw Thread Type | M |
| Size | M3X0.5 To M12X1.75 |
| Thread Coverage | Partially Threaded |
| Thread Size | M 10 |
| Thread Style | M3 M4 M5 M6 M8 M10 M12 |
| Thread Type | Metric |
| Thread size | M 10 |
| UPC | 703931047112 |
| Unit Count | 60.0 count |
W**K
helicoils set
Very good
D**E
Good value
Product did exactly what it was supposed to
D**I
Arrived on time
I bought these thread insets because my pedal got loose. The inserts are too small put in my pedal and my pedal is too big for the inserts. Does anybody know which size should I buy for a normal crank or pedal.
A**R
Thread repair kit
Fantastic fast & efficient service, definitely recommend
A**T
Fantastic item
I had never heard of this item so ordered it and was happy when it arrived so quickly and worked perfectly. It is a great item and worth 5 stars
J**S
All good
All good
R**D
Good product
Good product when you have got to repair are a tapped hole the same size
C**N
Ok
Good product.
B**N
I've seen worse
Not bad for the price
A**É
Erfüllt seine Zweck
Etwas wackelig aber es funktioniert
Trustpilot
3 weeks ago
2 days ago