--- product_id: 576398139 title: "4LIFETIMELINES Brass Brake Line Union, 3/16 (M10x1.0 Inverted), 10/bag" brand: "4lifetimelines" price: "VT10839" currency: VUV in_stock: true reviews_count: 5 category: "4 Lifetimelines" url: https://www.desertcart.vu/products/576398139-4lifetimelines-brass-brake-line-union-3-16-m10x1-0-inverted store_origin: VU region: Vanuatu --- # Pack of 10 for bulk reliability Precision M10x1.0 inverted thread Corrosion-resistant brass build 4LIFETIMELINES Brass Brake Line Union, 3/16 (M10x1.0 Inverted), 10/bag **Brand:** 4lifetimelines **Price:** VT10839 **Availability:** βœ… In Stock ## Summary > πŸš— Lock in safety and style with brass that lasts! ## Quick Answers - **What is this?** 4LIFETIMELINES Brass Brake Line Union, 3/16 (M10x1.0 Inverted), 10/bag by 4lifetimelines - **How much does it cost?** VT10839 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/576398139-4lifetimelines-brass-brake-line-union-3-16-m10x1-0-inverted) ## Best For - 4lifetimelines enthusiasts ## Why This Product - Trusted 4lifetimelines brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Built to Endure:** Premium brass construction resists road salt and harsh winter conditions for lasting durability. - β€’ **Bulk Value Pack:** Includes 10 high-quality unions per bagβ€”perfect for professional repairs or DIY upgrades. - β€’ **Trusted Brand Quality:** Manufactured by 4LIFETIMELINES, a name synonymous with reliability in brake line components. - β€’ **Universal Compatibility:** Works flawlessly with steel, copper nickel, copper coated steel, PVF-coated, and stainless steel brake lines. - β€’ **Engineered for Precision:** Exact 3/16 (M10x1.0 inverted) threading ensures seamless brake line connections. ## Overview The 4LIFETIMELINES Brass Brake Line Union (3/16 M10x1.0 Inverted) is a durable, corrosion-resistant brass fitting designed for reliable brake hydraulic line connections. Compatible with multiple brake line materials and sold in convenient packs of 10, it offers professional-grade quality for vehicle maintenance and repair. ## Description Experience superior quality with these 3/16 (M10x1.0 Inverted) brass brake line unions, designed for reliable brake hydraulic line applications. Crafted from durable brass material, these unions offer excellent resistance to road salt corrosion, making them ideal for winter conditions. The versatile unions are fully compatible with multiple types of replacement lines, including steel, copper nickel, copper coated steel, PVF-coated, and stainless steel. Each package contains 10 unions, providing you with a reliable solution for your brake line connection needs. Review: I always buy these brake unions for fixing my cars, but sometimes the threads are a bit weak, these ones are well threaded and they lock with the brake line ones . super happy will buy again when needed Review: Perfect. Worked like it was supposed to. ## Features - Our 3/16 (M10x1.0 Inverted) brake line unions are made with unmatched superior quality - Suitable for brake hydraulic line union applications - International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07BN2W68Q | | Brand | 4LIFETIMELINES | | Colour | Brass | | Connector Type | Union | | Customer Reviews | 4.7 4.7 out of 5 stars (270) | | Exterior Finish | Brass | | Item Dimensions | 17.8 x 10.2 x 1.3 centimetres | | Item Weight | 0.16 Kilograms | | Manufacturer | 4LifetimeLines | | Material | Brass | | Model Number | LTBU9 | | Number of Pieces | 10 | | Size | 50 Pack | | Thread Size | M10 | | Thread Type | NPT | | UPC | 811701030575 | | Unit Count | 10.0 count | ## Product Details - **Brand:** 4LIFETIMELINES - **Colour:** Brass - **Connector type:** Union - **Exterior finish:** Brass - **Item dimensions L x W x H:** 17.8 x 10.2 x 1.3 centimetres - **Item weight:** 0.16 Kilograms - **Material:** Brass - **Size:** 50 Pack - **Thread size:** M10 - **Thread type:** NPT ## Images ![4LIFETIMELINES Brass Brake Line Union, 3/16 (M10x1.0 Inverted), 10/bag - Image 1](https://m.media-amazon.com/images/I/61DiwonWnJL.jpg) ![4LIFETIMELINES Brass Brake Line Union, 3/16 (M10x1.0 Inverted), 10/bag - Image 2](https://m.media-amazon.com/images/I/51-WY1lSXGL.jpg) ![4LIFETIMELINES Brass Brake Line Union, 3/16 (M10x1.0 Inverted), 10/bag - Image 3](https://m.media-amazon.com/images/I/612CAiPm0EL.jpg) ![4LIFETIMELINES Brass Brake Line Union, 3/16 (M10x1.0 Inverted), 10/bag - Image 4](https://m.media-amazon.com/images/I/51Ak7-Qb+IL.jpg) ![4LIFETIMELINES Brass Brake Line Union, 3/16 (M10x1.0 Inverted), 10/bag - Image 5](https://m.media-amazon.com/images/I/81h09wFh9LL.jpg) ## Questions & Answers **Q: Will I be able to use this union for shortening a long line into two sections, 2002 Miata** A: As long as you're comfortable cutting and flaring lines, you should be able to use this to join any lines using m10x1.0 fittings. **Q: Are these fine thread or extra fine?** A: Metric. **Q: I need coupling for m10 x 1.0. what does "m10 x 1.0 inverted" mean?** A: Inverted "flared 16mm tube" **Q: Is it OK to use stainless fittings with this?** A: Yes! You can absolutely use Stainless Steel fittings with this union. And heads up, we are launching our Stainless Steel fittings program within the next month and will have a complete offering of fittings, union, and adapters in Stainless Steel. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by K***L on 29 June 2024* I always buy these brake unions for fixing my cars, but sometimes the threads are a bit weak, these ones are well threaded and they lock with the brake line ones . super happy will buy again when needed ### ⭐⭐⭐⭐⭐ Review *by K***R on 23 May 2025* Perfect. Worked like it was supposed to. ### ⭐⭐⭐⭐⭐ Review *by J***S on 13 September 2025* Great quality brake line connectors --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/576398139-4lifetimelines-brass-brake-line-union-3-16-m10x1-0-inverted](https://www.desertcart.vu/products/576398139-4lifetimelines-brass-brake-line-union-3-16-m10x1-0-inverted) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-07*