Features: <> Corrosion Resistance: Made of premium quality materials, with corrosion resistance, able to resist harsh environments and have a longer service , reducing the frequency of replacement and maintenance.  <> High- Resistance: Able to withstand high- environments without deformation or damage.  <> Multiple Sizes: Available in 5 sizes (10AN-5/8", 12AN-3/4", 4AN-1/4", 6AN-3/8", 8AN-1/2") to meet different needs.  <> Wide of Applications: The hardline tube nut and sleeve fitting has a wide of applications and can be used in systems such as brake systems, fuel systems, cooling systems, and engine modification, with adaptability and reliability.  <> Easy Installation: Simple tools are all that is needed for installation, without special skills or equipment, saving installation costs and . <> <> Specifications: <> Item Name: Tube Nut and Sleeve <> Main Material: <> Color: Black <> Size: 8AN-1/2" <> <> Package Information:  <> Package Size: 12.7*11*2cm <> Package Weight: 70g <> <> Package List: K21920B-5 <> 1 * Tube Nut <> 1 * Tube Sleeve