Usage Tips:Enjoy the benefits of bulk purchasing with our pack of 25 HVAC locking caps. Each cap features an O-ring seal inside, providing reliable service for large-scale projects or frequent replacement needs. Our generous quantity ensures you're fully prepared for any critical or straightforward project, offering a quantity advantage unmatched by others. Our brass flare caps are meticulously designed to fit precisely on a 1/4inch copper pipe, featuring 7/16-20 UNF threads. This design eliminates any space for leaks, making installation and removal simple and manageable. With our precision-designed brass flare caps, your tasks will be smooth and flawless. Made from high-quality brass, our 1/4inch flare fittings offer enhanced ductility and durability. They remain reliable even in harsh conditions, showcasing their sturdiness and quality. Upgrade your projects with our brass flare caps and experience the benefits of their resilience. Discover the effectiveness of a neoprene O-ring in achieving a perfect seal. Our 1/4inch brass cap fitting includes this ring, ensuring a seamless seal and eliminating worries about leaks. Whether you're performing repairs, installations, or general maintenance, the neoprene O-ring allows you to work with ease and confidence. Our 1/4inch flare brass caps are incredibly versatile, suitable for a wide range of applications. From essential industrial and manufacturing components to home fixture needs, these caps provide a reliable solution for diverse capping requirements. Their wide applicability makes them a valuable addition to your toolkit. Colour:As Shown Material:brass type: A/B Package Contents: 1 set x 12 shot ring caps Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.