Our GB 6176 Hexagon Nuts, Style 2 - Fine Pitch Thread, are engineered for efficient and reliable integration into automotive assembly processes: Standard Hexagon Shape: The familiar hexagonal profile ensures seamless compatibility with standard automotive wrenches and sockets, facilitating quick and efficient tightening and loosening during assembly and maintenance. Fine Pitch Threading: While requiring more turns than coarse threads, the fine pitch allows for smoother and more controlled engagement with the bolt threads, aiding in achieving precise torque application. Chamfered Nut Face: Typically features a chamfer on the bearing face to facilitate easy starting and engagement with the bolt. Key Advantages for Your Applications: The unique combination of Style 2 construction and fine pitch threading provides significant benefits crucial for automotive reliability and performance: Superior Strength (Style 2): Style 2 nuts are thicker than Style 1 nuts, offering a larger load-bearing surface on the threads and increased axial strength. This makes them ideal for use with high-strength bolts in applications subjected to significant tensile loads. Exceptional Vibration Resistance (Fine Pitch): The smaller helix angle of the fine pitch thread provides a greater self-locking effect compared to coarse threads, making GB 6176 nuts highly resistant to loosening caused by the dynamic loads and vibrations prevalent in automotive environments. Precise Preload Control (Fine Pitch): Fine threads allow for finer adjustment of the clamping force (preload) during tightening. This is critical for ensuring optimal joint integrity in sensitive components and preventing over-tightening that could cause damage. Enhanced Fatigue Resistance: The larger minor diameter of fine pitch threads (compared to coarse) can contribute to improved fatigue resistance in bolted joints under cyclic loading, a common challenge in vehicles. Reliable Performance: Manufactured to the stringent requirements of the GB 6176 standard, these nuts offer consistent dimensions, material properties, and reliable performance you can trust. Global Standard Equivalence: GB 6176 is often considered equivalent to international standards like ISO 8674 and DIN EN ISO 8674 , facilitating ease of global sourcing and ensuring interchangeability in many applications worldwide. Ideal for: GB 6176 Hexagon Nuts, Style 2 - Fine Pitch Thread, are ideally suited for demanding automotive applications where strength, vibration resistance, and precise clamping are essential: Chassis and Suspension Systems: Securing high-stress connections in the vehicle frame, suspension arms, and mounting points where high loads and vibrations are present. Powertrain Assemblies: Fastening engine blocks, transmission housings, and drivetrain components where reliable, high-strength, and vibration-resistant joints are critical for performance and durability. Braking Systems: Used in certain areas of braking systems where precise torque application and resistance to loosening are vital for safety. Steering Mechanisms: Providing secure and reliable connections in steering linkages subjected to dynamic forces. Heavy-Duty Vehicle Construction: Essential for structural connections in trucks, buses, and other commercial or off-highway vehicles. Applications Requiring Precise Preload: Any assembly where controlled clamping force is necessary for optimal function or to prevent damage to components. Product NameStandardMaterial & FinishDiameter (Metric)Height (mm)Hexagon NutsGB/T 6170-2015Carbon Steel, GalvanizedM6–M245–15Hexagon NutsDIN 934Stainless Steel A2/A4M8–M206–18Hexagon NutsISO 4032:2012Alloy Steel 35CrMo, DacrometM10–M308–25Hexagon NutsASME B18.2.2-2020SAE J429 Grade 8, Zinc-Nickel1/4"–1"3–12Hexagon NutsJIS B 1182:2016SCM435 Alloy Steel, PhosphateM6–M205–16Flange Hexagon NutsGB/T 6176-2016Carbon Steel, Black OxideM8–M247–20Flange Hexagon NutsDIN 6923Stainless Steel 316M10–M309–25Prevailing Torque NutsGB/T 3098.9-2010Steel + Nylon 6/6M6–M165–12Prevailing Torque NutsDIN 985Carbon Steel, Hot-Dip GalvanizedM8–M206–18Heavy Hex NutsASME B18.2.2-2020ASTM A194 Grade 2H3/8"–4"10–40