Features:1. Made of 8.8 grade heat treatment alloy steel material, high hardness, corrosion and rust resistant.2. Professional manufacturing, the kit has high level of accuracy and durability.3. Exquisite workmanship, this product is perfect fitting your vehicle.4. Easy to install, direct replacement for old or broken parts.5. Applied to Fasten Turbo and Manifolds under a lot of heat and stress.Specification:Condition: 100% Brand NewMaterial: 8.8 Grade Heat Treatment Alloy SteelColor: As Pictures ShownStud Overall Length: Approx. 42mm/1.7inThreaded Side Into Flange: Approx. 12mm/0.5inOverall Height on Nut Side: 30mm/1.2inBolt Thread Pitch: M10*1.50Nut Specs: Flange Grade 8 Hex Nuts M10*1.50Fitment: Applied to Fasten Turbo and Manifolds under a lot of heat and stressPackage List:4 * Screw4 * Nut