About this item [Size] Joins male/female flange 4.0" ID to 4.0" OD pipe. T-Bolt thread size: M8*1.25. [Advantage] V-band clamp is easy to install and remove perfect for applications requiring frequent removals and provide a great seal with even pressure at the flange. [Feature] Male female flanges are sealed without gaskets to ensure proper alignment of the flanges inside the clamp for easy installation. [Material] Stainless steel clamp and flanges; chromium-molybdenum steel T bolt. [Application] Compatible for exhaust system, turbocharger, downpipe, muffler etc. Package Included: 4x Clamp 8x flat flanges.