2.75" Zinc Coated Stainless Steel T-Bolt Clamp (Pack of 4) Universal Application for Use with Turbo, Intake, Exhaust, Intercooler Piping & Silicone House 2.75" Inner Diameter 10 mm Lock Nut Bolt that Secures a Tight Hold Made of High Quality T-304 Polished Stainless Steel Alloy Material for Strength and Durability Zinc-Coated Stud