Weld-In BungFemale 3/8 in. -18NPT Aluminum Weld BungFemale 3/8 in. -18NPT Aluminum Weld Bung; 1 in. O.D.; 6061 Billet Aluminum ;SPECIFICATIONS:Material: 6061 Aluminum A/N Size: N/AThread Size: 3/8 in.-18 NPTFEATURES:T6061 Billet AluminumIdeal For Projects That Require Custom Plumbing1 Year Limited WarrantyVibrant Performance weld bungs are an excellent and convenient way to handle a variety of applications such as aluminum radiators, oil pans, custom tank fabrication or any other project that is specialized and requires customized plumbing.Vibrant Performance was established in 1997 to design and produce Exhaust and Induction components for the Sport Compact