---
product_id: 3861038
title: "Loctite 243"
brand: "loctite"
price: "¥3118"
currency: JPY
in_stock: true
category: "Loctite"
url: https://www.desertcart.jp/products/3861038-loctite-243
store_origin: JP
region: Japan
---

# Heat resistant up to 140°F Secures bolts 6-20 mm 10 min initial set time Loctite 243

**Brand:** loctite
**Price:** ¥3118
**Availability:** ✅ In Stock

## Summary

> 🔧 Lock it down with confidence — the pro’s choice for lasting automotive strength!

## Quick Answers

- **What is this?** Loctite 243 by loctite
- **How much does it cost?** ¥3118 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/3861038-loctite-243)

## Best For

- loctite enthusiasts

## Why This Product

- Trusted loctite brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Fast-Acting Strength:** Sets in just 10 minutes for quick repairs and minimal downtime.
- • **Oil-Tolerant Formula:** Maintains bond integrity even on oily or contaminated metal surfaces.
- • **Trusted by Professionals:** OEM-specified and highly rated with 4.8 stars from over 3,300 users.
- • **Shock & Vibration Resistant:** Ideal for high-impact automotive parts like brake calipers and pulleys.
- • **Versatile Metal Compatibility:** Bonds reliably to stainless steel, aluminum, and plated metals.

## Overview

Loctite 243 Blue Threadlocker is a medium-strength, oil-resistant adhesive designed for automotive nuts and bolts (6-20 mm). It sets in 10 minutes, fully cures in 24 hours, and withstands temperatures up to 140°F. Trusted by professionals, it bonds to various metals and resists shock, vibration, and chemicals, ensuring durable, reliable repairs.

## Description

LOCTITE Automotive Threadlocker Blue 243 is a medium-strength, medium-temp, oil-tolerant adhesive designed for general-purpose automotive applications. OEM-specified and trusted by professionals, this anaerobic threadlocker bonds effectively to all metals, including stainless steel, aluminum, and plated surfaces. Its enhanced oil tolerance ensures reliable performance, even in challenging conditions. LOCTITE Blue 243 is ideal for securing components that endure heavy shock, vibration, and chemical exposure. It works perfectly on rocker studs, adjustment bolts, valve and cam covers, oil pans, disc brake calipers, intakes, alternators, and pulley assemblies. Suitable for all nut and bolt applications ranging from ¼" to ¾" (6 mm to 20 mm). The product sets in just 10 minutes, allowing for a fast start, and reaches full strength within 24 hours, providing a durable, temperature-resistant bond up to 140°F. LOCTITE Blue 243 delivers long-lasting, reliable results for your automotive repair and maintenance needs.

## Features

- Fit type: Vehicle Specific

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004L439FE |
| Best Sellers Rank | #2,167 in Automotive ( See Top 100 in Automotive ) #9 in Thread Lock Sealers |
| Brand Name | Loctite |
| Color | Blue,Red |
| Compatible Material | Aluminum, Stainless Steel |
| Container Type | Tube |
| Customer Reviews | 4.8 4.8 out of 5 stars (3,330) |
| Full Cure Time | 24 hours |
| Global Trade Identification Number | 00079340439078 |
| Included Components | (1) 243 Threadlocker for Automotive, Blue, 6-ml |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Type Name | automotive-thread-lock-sealers |
| Item Weight | 18.14 g |
| Manufacturer | Loctite |
| Material Type | Aluminum,Stainless Steel |
| Model | 1330799 |
| Number of Pieces | 1 |
| Part Number | 1330799 |
| Specific Uses For Product | Automotive, Mechanical |
| UPC | 079340439078 |
| Viscosity Level | Medium |
| Volume | 6 ml |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Loctite
- **Color:** Blue,Red
- **Item Form:** Liquid
- **Material:** Aluminum,Stainless Steel
- **Specific Uses For Product:** Automotive, Mechanical

## Images

![Loctite 243 - Image 1](https://m.media-amazon.com/images/I/81InQQNOf1L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: is there a loctite that resists gasoline ?**
A: Most of our Loctite anaerobic sealants and threadlockers will resist gasoline once they're fully cured. The right product will depend on your application requirements. Please call 1-800-LOCTITE (562-8483) to receive a product recommendation from one of our engineers.

**Q: How do I open the Loctite 243 bottle?**
A: You simply twist the cap and it should open.

**Q: Is this good to use on battery cable bolts?**
A: Yes this can be used on the threads.  Loctite 243 is a plastic so keep it off the post where good electrically conductive contact is required.
I am thinking a car battery here.   If this is a different design and IF THIS  THREADED ASSEMBLY REQUIRES ELECTRICALLY CONDUCTIVY DO NO USE OUR PLASTIC THREADLOCKER IT WILL INSULATE AND GENERATE RESISTANCE.

**Q: Can this still be effective on a bolt that is threaded, left to sit, and then threaded again to torque spec?**
A: Left for set how long? When you remove the bolt, if it's still wet then yes, but I would wipe it off and reapply because I would want a thicker application for a tighter bond.

## Frequently Bought Together

- LOCTITE 243 Automotive Threadlocker Blue - Medium Strength Thread Lock, General Purpose, Oil Tolerant - 6 ml, 1 Pack
- LOCTITE 263 Automotive Threadlocker Red – High Strength Thread Lock, General Purpose Applications, Oil Tolerant, Fluorescent - 6 ml, 1 Pack
- Loctite 38653 222 Purple Low Strength Thread Locker Tube - 6 ml

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**Shop now:** [https://www.desertcart.jp/products/3861038-loctite-243](https://www.desertcart.jp/products/3861038-loctite-243)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-01*