GB9457 A/B Grade Fine Pitch Type 1 Automotive Hexagonal Slotted Nuts are precision-crafted fasteners designed to deliver superior performance in high-stakes automotive applications. Featuring a fine-pitch thread and slotted hexagonal design, these nuts combine precise adjustability with exceptional vibration resistance, ensuring secure, long-lasting connections even in dynamic environments. The slots enable controlled radial expansion during installation, creating a self-locking mechanism that counteracts loosening from engine vibrations, road impacts, or thermal fluctuations. Manufactured from high-grade alloy steel and available in A/B strength grades, they offer unmatched tensile strength and fatigue resistance, making them ideal for critical automotive systems such as engine blocks, transmission assemblies, and suspension linkages. The corrosion-resistant finish withstands harsh conditions, including exposure to chemicals, moisture, and extreme temperatures, while the reusable design reduces maintenance costs and downtime. Compliant with GB standards and trusted by automotive engineers, GB9457 nuts guarantee precision engineering and reliability, ensuring critical components remain tightly secured across millions of operational cycles. From chassis joints to exhaust systems, these slotted nuts provide a fail-safe solution for applications demanding precision, durability, and unwavering performance. Trust them to keep your vehicle’s vital systems locked in place, mile after demanding mile. Designed for Ease of Use: The hexagonal head provides a standard and reliable engagement point for a wide range of common tools, ensuring efficient and straightforward installation. The precisely machined slots are designed for easy insertion of locking wires or cotter pins when even further security against loosening is required in extreme vibration scenarios. This thoughtful design allows for both standard high-torque fastening and additional mechanical locking options, providing flexibility and adaptability for diverse assembly requirements. Key Advantages for Your Applications: Superior Vibration Resistance: Slotted design creates a self-locking mechanism, preventing loosening. Precise Adjustability: Fine-pitch thread allows for accurate torque and preload control. Exceptional Strength & Fatigue Resistance: High-grade alloy steel and A/B grades ensure durability under extreme loads. Robust Corrosion Resistance: Withstands harsh automotive environments, including chemicals and extreme temperatures. Versatile Locking Options: Compatible with locking wires or cotter pins for added security. Reusable Design: Contributes to reduced maintenance costs and downtime. Compliance with GB Standards: Guarantees precision engineering and reliability. Long-Lasting Performance: Engineered to maintain secure connections across millions of operational cycles. Ideal for: Engine Blocks: Securing critical components under intense vibration and thermal stress. Transmission Assemblies: Ensuring the integrity of complex and dynamic powertrain systems. Suspension Linkages: Maintaining precise alignment and preventing loosening in critical steering and handling components. Chassis Joints: Providing robust and reliable connections in the vehicle's structural framework. Exhaust Systems: Withstanding high temperatures and vibrations to maintain a secure seal. Braking Systems: Ensuring the safety and reliability of critical braking components. Steering Mechanisms: Maintaining precise control and preventing failure in vital steering linkages. Product NameStandardMaterialDiameterThickness/HeightHexagonal Slotted NutsGB/T 6175-201645 Carbon Steel, Zinc PlatedM8 (8 mm)6.5 mmHexagonal Slotted NutsGB/T 6175-201645 Carbon Steel, Zinc PlatedM10 (10 mm)8 mmHexagonal Slotted NutsGB/T 6175-201645 Carbon Steel, Zinc PlatedM12 (12 mm)10 mmHexagonal Slotted NutsGB/T 6175-201645 Carbon Steel, Zinc PlatedM16 (16 mm)13 mmHexagonal Slotted NutsGB/T 6175-201645 Carbon Steel, Zinc PlatedM20 (20 mm)16 mmHexagonal Slotted NutsDIN 935C45E Steel, Nickel PlatedM6 (6 mm)5 mmHexagonal Slotted NutsDIN 935C45E Steel, Nickel PlatedM8 (8 mm)6.5 mmHexagonal Slotted NutsDIN 935C45E Steel, Nickel PlatedM10 (10 mm)8 mmHexagonal Slotted NutsDIN 935C45E Steel, Nickel PlatedM12 (12 mm)10 mmHexagonal Slotted NutsANSI B18.6.9SAE J429 Grade 5, Cadmium1/4" (6.35 mm)0.312" (7.92 mm)Hexagonal Slotted NutsANSI B18.6.9SAE J429 Grade 5, Cadmium3/8" (9.53 mm)0.437" (11.1 mm)Hexagonal Slotted NutsANSI B18.6.9SAE J429 Grade 5, Cadmium1/2" (12.7 mm)0.5" (12.7 mm)Hexagonal Slotted NutsANSI B18.6.9SAE J429 Grade 5, Cadmium3/4" (19.05 mm)0.75" (19.05 mm)Hexagonal Slotted NutsASME B18.6.9ASTM A194 Grade 2H, Hot-Dip Galvanized5/16" (7.94 mm)0.375" (9.53 mm)Hexagonal Slotted NutsASME B18.6.9ASTM A194 Grade 2H, Hot-Dip Galvanized7/16" (11.11 mm)0.562" (14.27 mm)Hexagonal Slotted NutsASME B18.6.9ASTM A194 Grade 2H, Hot-Dip Galvanized5/8" (15.88 mm)0.625" (15.88 mm)Hexagonal Slotted NutsISO 7042AISI 316 Stainless SteelM5 (5 mm)4 mmHexagonal Slotted NutsISO 7042AISI 316 Stainless SteelM8 (8 mm)6.5 mmHexagonal Slotted NutsISO 7042AISI 316 Stainless SteelM12 (12 mm)10 mmHexagonal Slotted NutsISO 7042AISI 316 Stainless SteelM16 (16 mm)13 mmHexagonal Slotted NutsJIS B1181S45C Carbon Steel, Zinc10 mm8 mmHexagonal Slotted NutsJIS B1181S45C Carbon Steel, Zinc16 mm13 mmHexagonal Slotted NutsJIS B1181S45C Carbon Steel, Zinc20 mm16 mmHexagonal Slotted NutsJIS B1181S45C Carbon Steel, Zinc24 mm19 mm