--- product_id: 173687996 title: "50PCS Threaded Inserts,Self-Tapping Thread Insert,M3-M12 Thread Reinforce Repair Tool,With Certain Elasticity,Even Load,Avoid Loosening,for Embedded In Plastic,Copper,Repair The Damaged Inner Thread" brand: "jectse" price: "£18.70" currency: GBP in_stock: true reviews_count: 5 category: "Jectse" url: https://www.desertcart.co.uk/products/173687996-50pcs-threaded-inserts-self-tapping-thread-insert-m3-m12-thread store_origin: GB region: United Kingdom --- # 50pcs versatile sizes M3-M12 Quick self-tapping install High-hardness stainless steel 50PCS Threaded Inserts,Self-Tapping Thread Insert,M3-M12 Thread Reinforce Repair Tool,With Certain Elasticity,Even Load,Avoid Loosening,for Embedded In Plastic,Copper,Repair The Damaged Inner Thread **Brand:** jectse **Price:** £18.70 **Availability:** ✅ In Stock ## Summary > 🔧 Upgrade your threads, avoid the slip—secure every connection like a pro! ## Quick Answers - **What is this?** 50PCS Threaded Inserts,Self-Tapping Thread Insert,M3-M12 Thread Reinforce Repair Tool,With Certain Elasticity,Even Load,Avoid Loosening,for Embedded In Plastic,Copper,Repair The Damaged Inner Thread by jectse - **How much does it cost?** £18.70 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/173687996-50pcs-threaded-inserts-self-tapping-thread-insert-m3-m12-thread) ## Best For - jectse enthusiasts ## Why This Product - Trusted jectse brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Economical & Reusable:** Restore damaged threads or upgrade new parts without extra cost. - • **Effortless Installation:** No pre-threading needed—install fast with a single tool. - • **Vibration-Resistant Elasticity:** Even load distribution prevents loosening under stress. - • **Premium Stainless Steel Strength:** High hardness and low abrasion for long-lasting screw stability. - • **Reinforce & Repair with Confidence:** Transforms soft materials like plastic & copper into durable threaded anchors. ## Overview This 50-piece set of stainless steel self-tapping threaded inserts (sizes M3 to M12) is engineered to reinforce and repair damaged inner threads in soft materials such as plastic and copper. Featuring high hardness, low abrasion, and elastic load distribution, these inserts resist vibration-induced loosening and offer quick, tool-only installation without pre-threading. Ideal for professionals seeking durable, reusable, and cost-effective thread repair solutions. ## Description Product Description 50PCS Threaded Inserts,Self-Tapping Thread Insert,M3-M12 Thread Reinforce Repair Tool,With Certain Elasticity,Even Load,Avoid Loosening,for Embedded In Plastic,Copper,Repair The Damaged Inner Thread SUITABLE: The self-tapping thread insert is a kind of fastener that strengthens the thread, which can form a high-strength inner thread hole when embedded in a soft material such as plastic, copper. It can also be used to repair the damaged inner thread. ADVANTAGE: With certain elasticity and even load, it is resistant to vibration to avoid loosening,Long service life - it can be used repeatedly. QUICK TO INSTALL: Easy and quick to install with only one assembly tool. The self-tapping thread insert is a kind of fastener that strengthens the thread, which can form a high-strength inner thread hole when embedded in a soft material such as plastic, copper. It can also be used to repair the damaged inner thread. Features 1. Made of high quality stainless steel, it is of high hardness and low abrasion. 2. Greatly improve strength and stability of screws connection. 3. With certain elasticity and even load, it is resistant to vibration to avoid loosening. 4. Long service life - it can be used repeatedly. 5. Easy and quick to install with only one assembly tool. 6. It can also repair the damaged thread by installing into thread hole. Specification Material: Stainless Steel Quantity: 50pcs Color: Silver Package Weight: Approx. 192g/6.8oz Package list 10 x M3*0.5-M5*0.5 L6 10 x M4*0.7-M6.5*0.75 L8 10 x M5*0.8-M8*1.0 L10 5 x M6*1.0-M10*1.5 L12 5 x M8*1.25-M12*1.5 L15 5 x M10*1.5-M14*1.5 L18 5 x M12*1.75-M16*1.5 L22 1 x Storage Case Note: Due to the difference between monitors and light effect, the pictures may not reflect the actual color of the item. Review: Waste of money do not buy - Thread not strong enough came out within a day , waste of money Review: Easy to use - Great selection of sizes for what I needed. ## Features - SUITABLE: The self-tapping thread insert is a kind of fastener that strengthens the thread, which can form a high-strength inner thread hole when embedded in a soft material such as plastic, copper. It can also be used to repair the damaged inner thread. - MATERIAL: Made of high quality stainless steel, it is of high hardness and low abrasion,Greatly improve strength and stability of screws connection - ADVANTAGE: With certain elasticity and even load, it is resistant to vibration to avoid loosening,Long service life - it can be used repeatedly. - QUICK TO INSTALL: Easy and quick to install with only one assembly tool. - INSTALLATION METHOD: The self-tapping screw sleeve installation does not need to be threaded in advance. It can be directly screwed into the specific hole reserved for the base material with the installation tool. The same screw as the original can also be used for the female thread of the broken tooth. It is economical and beautiful. For new products It can also increase the thread strength ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07Q611L33 | | Best Sellers Rank | 284,609 in DIY & Tools ( See Top 100 in DIY & Tools ) 340 in Nut Inserts | | Brand | Jectse | | Brand Name | Jectse | | Colour | Silver | | Country Of Origin | China | | Customer Reviews | 4.0 out of 5 stars 58 Reviews | | Fastener Type | Insert | | Fastener type | Insert | | Finish Types | Stainless Steel | | Item Diameter | 3 Millimetres | | Item Dimensions | 10 x 8 x 2 centimetres | | Item Shape | Round | | Item Weight | 0.2 Kilograms | | Item dimensions L x W x H | 10 x 8 x 2 centimetres | | Manufacturer | Jectse | | Manufacturer Part Number | Jectseid7q428x1o | | Material | Stainless Steel | | Material Type | Stainless Steel | | Model Number | Jectseid7q428x1o | | Number of Pieces | 50 | | Screw Head Style | Hex | | Set Name | Threaded Insert Set | | Size | M 12 | | Thread Size | M8 | | UPC | 747333448085 | ## Product Details - **Colour:** Silver - **Material:** Stainless Steel - **Brand:** Jectse - **Item dimensions L x W x H:** 10 x 8 x 2 centimetres - **Fastener type:** Insert ## Images ![50PCS Threaded Inserts,Self-Tapping Thread Insert,M3-M12 Thread Reinforce Repair Tool,With Certain Elasticity,Even Load,Avoid Loosening,for Embedded In Plastic,Copper,Repair The Damaged Inner Thread - Image 1](https://m.media-amazon.com/images/I/61utyppFB-L.jpg) ![50PCS Threaded Inserts,Self-Tapping Thread Insert,M3-M12 Thread Reinforce Repair Tool,With Certain Elasticity,Even Load,Avoid Loosening,for Embedded In Plastic,Copper,Repair The Damaged Inner Thread - Image 2](https://m.media-amazon.com/images/I/61zDVFW3XAL.jpg) ![50PCS Threaded Inserts,Self-Tapping Thread Insert,M3-M12 Thread Reinforce Repair Tool,With Certain Elasticity,Even Load,Avoid Loosening,for Embedded In Plastic,Copper,Repair The Damaged Inner Thread - Image 3](https://m.media-amazon.com/images/I/71yIrYdAJGL.jpg) ![50PCS Threaded Inserts,Self-Tapping Thread Insert,M3-M12 Thread Reinforce Repair Tool,With Certain Elasticity,Even Load,Avoid Loosening,for Embedded In Plastic,Copper,Repair The Damaged Inner Thread - Image 4](https://m.media-amazon.com/images/I/71XJTkaEauL.jpg) ![50PCS Threaded Inserts,Self-Tapping Thread Insert,M3-M12 Thread Reinforce Repair Tool,With Certain Elasticity,Even Load,Avoid Loosening,for Embedded In Plastic,Copper,Repair The Damaged Inner Thread - Image 5](https://m.media-amazon.com/images/I/61FHD0rO6oL.jpg) ## Customer Reviews ### ⭐ Waste of money do not buy *by S***S on 17 February 2022* Thread not strong enough came out within a day , waste of money ### ⭐⭐⭐⭐⭐ Easy to use *by L***W on 2 December 2022* Great selection of sizes for what I needed. ### ⭐ Kein Edelstahl *by S***R on 2 February 2024* Achtung Betrug! Hierbei handelt es nicht um Edelstahl, sondern um vernickelten Stahl. Dies erkennt man an der behandelten Oberfläche, dem Glanzgrad und daran, dass die Ensat magnetisch sind. Magnetisch Klammer ich ein, da ich nicht davon ausgehe, dass es sich um V4A handelt… Bei Edelstahl wäre keine Oberflächenbehandlung nötig. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/173687996-50pcs-threaded-inserts-self-tapping-thread-insert-m3-m12-thread](https://www.desertcart.co.uk/products/173687996-50pcs-threaded-inserts-self-tapping-thread-insert-m3-m12-thread) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-24*