--- product_id: 493357910 title: "ESKONKE Blue Thread Locker 243 Nuts & Bolts Locker Medium Strength Removable 1.69 Fl oz/50 ml Threadlocker Lock Tight & Seal Fasteners Anaerobic Curing Metal Glue (243)" brand: "eskonke" price: "£21.49" currency: GBP in_stock: true reviews_count: 5 url: https://www.desertcart.co.uk/products/493357910-eskonke-blue-thread-locker-243-nuts-and-bolts-locker-medium store_origin: GB region: United Kingdom --- # Cures in 10 min, full strength in 24 hrs Medium strength lock for bolts ≤ M32 Works in extreme temps & high vibration ESKONKE Blue Thread Locker 243 Nuts & Bolts Locker Medium Strength Removable 1.69 Fl oz/50 ml Threadlocker Lock Tight & Seal Fasteners Anaerobic Curing Metal Glue (243) **Brand:** eskonke **Price:** £21.49 **Availability:** ✅ In Stock ## Summary > 🔧 Lock it down, loosen it up—threadlocker that works as hard as you do! ## Quick Answers - **What is this?** ESKONKE Blue Thread Locker 243 Nuts & Bolts Locker Medium Strength Removable 1.69 Fl oz/50 ml Threadlocker Lock Tight & Seal Fasteners Anaerobic Curing Metal Glue (243) by eskonke - **How much does it cost?** £21.49 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/493357910-eskonke-blue-thread-locker-243-nuts-and-bolts-locker-medium) ## Best For - eskonke enthusiasts ## Why This Product - Trusted eskonke brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rust & Leak Defense:** Anaerobic curing seals fasteners perfectly, preventing rust, corrosion, and leakage without extra washers. - • **Precision Application:** Innovative nozzle design ensures mess-free, controlled glue flow for long-lasting performance. - • **Removable Yet Reliable:** Blue formula offers strong hold but allows easy disassembly anytime with tools—no heat needed. - • **Secure Every Connection:** Locks nuts & bolts tight to prevent loosening from shocks or vibrations—your gear stays flawless. - • **Universal Metal Compatibility:** Ideal for all metal screws below M32—automotive, electronics, furniture, and industrial gear covered. ## Overview ESKONKE Blue Thread Locker 243 is a medium-strength anaerobic adhesive designed to secure metal fasteners up to M32. It cures quickly within 10 minutes and reaches full strength in 24 hours, providing reliable resistance against vibration, shock, rust, and corrosion. Unlike permanent red variants, this blue formula allows easy disassembly with tools anytime, making it perfect for automotive, industrial, and household applications requiring durable yet serviceable fastening. ## Description Product Advantages: Enhanced Efficiency: Simple operation, Room temperature curing, and Fast curing. Particularly suitable for frequent disassembly and installation. Vibration/Shock Resistance: Locking bolts & nuts, effectively resisting the impact of vibration and shock to ensure equipment stability. Penetration & Sealing: Enhances thread rust, stain and corrosion resistance. Simplify the Process: No need tools. Simply apply the glue to the desired part for bonding. High Strength after Curing with Minimal Shrinkage. Uncured Overflow Glue can be easily Removed. Excellent Durability: Excellent performance in pressure /vibration /impact /chemical resistance, extreme temperature, corrosion and moisture resistance. Solvent-free Product: EP & pollution-free during use. Easy to transport/store safely. Cost Savings: there is no need to purchase spare gaskets of different sizes and traditional fasteners of different calibers to meet the locking requirements of different equipment Note: Please shake before use to ensure uniform composition; And ensure that the fastener lock position is clean, dry and oil-free; This product needs to be in full contact with the air to prevent curing. So it only have 4/9 of the liquid in the bottle; It is not suitable for ≥M32 bolts. Oversize bolts will affect the curing speed and strength due to excessive thread clearance; It is suitable for common metal screw materials in the market, such as carbon steel/ stainless steel/ alloy steel/ copper/ aluminum alloy/ titanium alloy, etc; It is not suitable for stone /plastic /rubber /wood /paper /glass /ceramic /cement /fiber and other non-metallic materials bonding and fixing; It is not suitable for use in pure oxygen, pure chlorine or oxygen-rich, chlorine-rich environment, nor can it be used as a sealing material of hydroxide material; Do not pour back the unused glue, so as not to pollute the original glue; No smoke is produced during curing. Please seal immediately after use to avoid volatilization of active ingredients; Please store it in room temperature, cool place, avoid sunlight and high temperature environment; ## Features - Lock Tight Thread Locker: Can fasten bolts & nuts for a long time to avoid loosening due to vibration or shock, Even in extreme environments such as high vibration, high humidity, ultra-high or ultra-low temperature. A must-have for extending the service life and safe use of metal fasteners! - Permanent Locking & Easy Disassembly: Both Blue & Red Threadlocker can Permanently lock tite Fasteners due to Their Stable Chemical Properties. Red Threadlocker Require Heating due to Their High Disassembly Torque to be Disassembled with Tools, While Blue Threadlocker can be Disassembled with Tools at Any Time. - Prevents Rusting / Corrosion / Leakage: Unique anaerobic solidification function of flowing liquid ensures tight contact and perfect sealing of bolts & nuts. Avoid the additional cost of purchasing various specifications of washers and traditional locking screws. - Widely Used: Suitable for Tightening and Maintaining all Metal Screws Below M32, including Automobiles, Motorcycles, Bicycles, Furniture, Household Appliances, Electronic Digital Products, Industrial Equipment, etc. Only Need a Bottle of Thread Locker to Ensure the Normal & Safe Operation of your Equipment. - Simple Operation: Just apply a dab of the thread locker to the fixing position of the bolt & nut, And then it will Start to Cure in 10 Minutes, And your items can be used normally after 24 hours of fully cured. The peak nozzle design with pull-up opening and downward pressure sealing can easily maintain the long-term effectiveness of the glue and enable precise and controllable application. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B09SLRN9MV | | Best Sellers Rank | #78,999 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #333 in Hardware Nuts & Bolts | | Brand Name | ESKONKE | | Color | Blue | | Compatible Material | Metal | | Container Type | Bottle | | Customer Reviews | 4.6 4.6 out of 5 stars (3,369) 4.6 out of 5 stars | | Full Cure Time | 24 Hours | | Included Components | Liquid | | Item Form | Liquid | | Item Package Quantity | 1 | | Item Weight | 60 Grams | | Manufacturer | ESKONKE | | Material Type | Epoxy Acrylate(60-65%) / Oleic acid, ethoxylated(25-30%) | | Model | 243 | | Number Of Pieces | 1 | | Other Special Features Of The Product | Anaerobic adhesive, blue thread locker 243, metal glue, thread lock nuts bolts, thread locker 243 | | Part Number | TL21-S002R | | Specific Uses For Product | Lock Tight Fasteners, Lock Tight Nuts Bolts, Seal Fasteners | | Tensile Strength | 180 Pounds Per Square Inch | | Unit Count | 1.69 Fluid Ounces | | Upc | 788462034992 | | Viscosity Level | Medium to High | | Volume | 1.69 Fluid Ounces | | Water Resistance Level | Water Resistant | ## Product Details - **Brand:** ESKONKE - **Specific uses for product:** Lock Tight Fasteners, Lock Tight Nuts Bolts, Seal Fasteners - **Material:** Epoxy Acrylate(60-65%) / Oleic acid, ethoxylated(25-30%) - **Item form:** Liquid - **Special features:** Anaerobic adhesive, blue thread locker 243, metal glue, thread lock nuts bolts, thread locker 243 ## Images ![ESKONKE Blue Thread Locker 243 Nuts & Bolts Locker Medium Strength Removable 1.69 Fl oz/50 ml Threadlocker Lock Tight & Seal Fasteners Anaerobic Curing Metal Glue (243) - Image 1](https://m.media-amazon.com/images/I/71Un-FiPF4L.jpg) ![ESKONKE Blue Thread Locker 243 Nuts & Bolts Locker Medium Strength Removable 1.69 Fl oz/50 ml Threadlocker Lock Tight & Seal Fasteners Anaerobic Curing Metal Glue (243) - Image 2](https://m.media-amazon.com/images/I/61f7gUuw60L.jpg) ![ESKONKE Blue Thread Locker 243 Nuts & Bolts Locker Medium Strength Removable 1.69 Fl oz/50 ml Threadlocker Lock Tight & Seal Fasteners Anaerobic Curing Metal Glue (243) - Image 3](https://m.media-amazon.com/images/I/71xymc+FaIL.jpg) ![ESKONKE Blue Thread Locker 243 Nuts & Bolts Locker Medium Strength Removable 1.69 Fl oz/50 ml Threadlocker Lock Tight & Seal Fasteners Anaerobic Curing Metal Glue (243) - Image 4](https://m.media-amazon.com/images/I/71ucM-NwPcL.jpg) ![ESKONKE Blue Thread Locker 243 Nuts & Bolts Locker Medium Strength Removable 1.69 Fl oz/50 ml Threadlocker Lock Tight & Seal Fasteners Anaerobic Curing Metal Glue (243) - Image 5](https://m.media-amazon.com/images/I/611+sb+4tsL.jpg) ## Available Options This product comes in different **Model** options. ## Questions & Answers **Q: I received the 50ml bottle is not even has half the content inside. Is this right or should it be full bottle?** A: Being a past Loctite adhesive specialist, anaerobic adhesives cure in the absence of air. Filling the bottle would shorten the shelf life because of no air around the product. Also, the bottle is made of an air permiable plastic. This why old bottles get sticky, the product is weeping through the pore's of the bottle. 50 and 250 ml bottles are not round and are flat by design to discourage any curing of the product in the center of the liquid inside the bottle. Anaerobic adhesives cure upon assembly and do not air dry, this why any liquid product should be wiped away from the completely assembly because in the liquid state it will craze painted surfaces. Half filled bottles are very normal. You can dump the product out in to a measuring cup to verify the amount but you will find you are not getting ripped off. It all about packaging. **Q: I was examining some spilled M-243 and it is still gummy after two weeks. Is this normal or should it be hard to the touch?** A: This is normal M-243 is like a light glue to hold the screw or bolt in place like pipe tape is for a watertight seal. I use it after cleaning my hunting rifle on the screws during the re-assembly process. Hope this helps. **Q: can I use this on a .125 inch set screw?** A: Yes. M-243 can be used on a 1/8 set screw. If possible, apply the threadlocker to both male and female threads before installing the set screw. **Q: Does this prevent seizing and galling? (anti-seizing)** A: To the best of my knowledge, seizing and galling occur when two surfaces are rubbing against each other (by design e.g. shaft and bushing), but for some reason (e.g. lack of lubrication) will eventually destroy each other (causing seizing and galling). So I don't think this will help prevent seizing and galling in that sense as it would not be used as a lubricant. It is possible that it prevents corrosion in certain materials e.g. steel bolts and nuts. But that needs to be verified. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good adhesive *by on Reviewed in the United States 25 November 2025* Works well ### ⭐⭐⭐⭐ Pricy but works fine *by on Reviewed in the United States 19 November 2024* Pricy but works fine ### ⭐⭐⭐⭐⭐ Works perfect *by on Reviewed in the United States 8 May 2026* Thread locker worked as it should. Came fast and the bottles are big. Worth the price. Drying time is perfect ## Frequently Bought Together - ESKONKE Blue Thread Locker 243 Nuts & Bolts Locker Medium Strength Removable 1.69 Fl oz Threadlocker Lock Tight & Seal Fasteners Anaerobic Curing Metal Glue (243) - ESKONKE Blue Thread Locker 243 - Removable Threadlocker Metal Glue for Nuts, Bolts, Fasteners Medium Strength Screw Compound to Prevent Loosening & Corrosion 1.69 Oz/50 ml --- ## 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/493357910-eskonke-blue-thread-locker-243-nuts-and-bolts-locker-medium](https://www.desertcart.co.uk/products/493357910-eskonke-blue-thread-locker-243-nuts-and-bolts-locker-medium) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-11*