







🔧 Fix it once, fix it right — the ultimate thread saver kit!
The Symphonyw Thread Repair Insert Kit offers 60 high-quality stainless steel helicoil inserts ranging from M3 to M12 sizes. Designed with a locking wire sleeve, it prevents screw loosening under vibration and shock, evenly distributes load to enhance thread durability, and is ideal for repairing damaged threads in low-strength materials. This kit is a must-have for professionals and DIY enthusiasts seeking reliable, long-lasting thread repairs.






| ASIN | B07GLFXTLD |
| Best Sellers Rank | 198,610 in DIY & Tools ( See Top 100 in DIY & Tools ) 219 in Nut Inserts |
| Brand Name | Symphonyw |
| Customer Reviews | 4.4 4.4 out of 5 stars (221) |
| Drive System | Slotted |
| Exterior Finish | Stainless Steel |
| Fastener Size | M3, M4, M5, M6, M8, M10, M12 |
| Fastener Type | Insert, Lock |
| Head Type | Socket |
| Item Diameter | 10 Millimetres |
| Manufacturer | Symphony |
| Manufacturer Part Number | Symphonyw |
| Material Type | Stainless Steel |
| Metal | 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 |
| 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
Not bad for the price
A**É
Etwas wackelig aber es funktioniert
Trustpilot
Hace 2 meses
Hace 3 semanas