DIN980M End Face Two-Piece Metal Locking Nut is a robust, precision-engineered fastener designed to meet the rigorous demands of automotive applications. Featuring a unique two-piece construction with an integrated end-face design, it delivers exceptional resistance to vibration and loosening, even under extreme conditions. The nut’s serrated end face creates a secure, interlocking grip against mating surfaces, preventing rotational movement while maintaining consistent clamping force over time. Crafted from high-strength alloy steel and treated with corrosion-resistant coatings, it withstands harsh environments, temperature fluctuations, and heavy mechanical stress—ideal for critical automotive systems like engine assemblies, transmission components, and chassis joints. Its reusable design simplifies maintenance without compromising integrity, reducing downtime and long-term costs. Trusted by automotive manufacturers for its reliability and compliance with DIN standards, the DIN980M ensures durable, vibration-proof connections that enhance vehicle safety and performance. Perfect for applications where failure is not an option, this locking nut combines innovation and precision to keep your systems running smoothly, mile after mile. Designed for Ease of Use and Long-Term Value: We understand the importance of both robust performance and efficient maintenance. The DIN980M Locking Nut is designed for straightforward installation using standard tools. Its innovative two-piece construction also allows for reliable reusability during maintenance procedures. This eliminates the need for single-use locking elements, simplifying maintenance tasks, reducing vehicle downtime, and ultimately lowering long-term operational costs without compromising the nut's exceptional locking integrity. Key Advantages for Your Applications: Unrivaled Vibration Resistance: The integrated serrated end face provides a superior interlocking grip, preventing loosening under extreme vibration. Consistent Clamping Force: Engineered to maintain reliable preload over time, ensuring joint integrity. Exceptional Durability: Crafted from high-strength alloy steel for long-lasting performance in demanding conditions. Superior Corrosion Resistance: Advanced coatings protect against harsh environments and extend fastener lifespan. Reliable Reusability: Simplifies maintenance procedures without sacrificing locking effectiveness. Compliance with DIN Standards: Ensures dimensional accuracy and performance reliability trusted by automotive manufacturers. Enhanced Vehicle Safety: Provides secure connections in critical systems, contributing to overall vehicle safety. Reduced Downtime & Costs: Reusable design minimizes replacement needs and streamlines maintenance. Ideal for: Engine Assemblies: Securing critical engine components where vibration and thermal cycling are prevalent. Transmission Components: Ensuring the integrity of transmission housings, gears, and related elements. Chassis Joints: Providing robust and vibration-proof connections in suspension, steering, and frame assemblies. Exhaust Systems: Withstanding high temperatures and vibrations in exhaust manifolds and piping. Braking Systems: Securing critical brake components where reliability is paramount. Heavy-Duty Vehicles: Ideal for trucks, buses, and off-road equipment subjected to extreme conditions. Safety-Critical Applications: Any automotive system where fastener failure could have severe consequences. Product NameStandardMaterialDiameterThickness/HeightTwo-Piece Locking NutGB/T 6182-201645 Carbon Steel, Zinc PlatedM12 (12 mm)10 mmTwo-Piece Locking NutGB/T 6182-201645 Carbon Steel, Zinc PlatedM16 (16 mm)13 mmTwo-Piece Locking NutGB/T 6182-201645 Carbon Steel, Zinc PlatedM20 (20 mm)16 mmTwo-Piece Locking NutGB/T 6182-201645 Carbon Steel, Zinc PlatedM24 (24 mm)19 mmTwo-Piece Locking NutGB/T 6182-201645 Carbon Steel, Zinc PlatedM30 (30 mm)22 mmTwo-Piece Locking NutASME B18.16.5Alloy Steel, Dacromet Coated1/2" (12.7 mm)0.375" (9.53 mm)Two-Piece Locking NutASME B18.16.5Alloy Steel, Dacromet Coated5/8" (15.88 mm)0.437" (11.1 mm)Two-Piece Locking NutASME B18.16.5Alloy Steel, Dacromet Coated3/4" (19.05 mm)0.5" (12.7 mm)Two-Piece Locking NutASME B18.16.5Alloy Steel, Dacromet Coated1" (25.4 mm)0.625" (15.88 mm)Two-Piece Locking NutDIN 985A4-80 Stainless SteelM8 (8 mm)6.5 mmTwo-Piece Locking NutDIN 985A4-80 Stainless SteelM10 (10 mm)8 mmTwo-Piece Locking NutDIN 985A4-80 Stainless SteelM12 (12 mm)10 mmTwo-Piece Locking NutDIN 985A4-80 Stainless SteelM16 (16 mm)13 mmTwo-Piece Locking NutISO 7042AISI 316L Stainless SteelM6 (6 mm)5 mmTwo-Piece Locking NutISO 7042AISI 316L Stainless SteelM8 (8 mm)6.5 mmTwo-Piece Locking NutISO 7042AISI 316L Stainless SteelM10 (10 mm)8 mmTwo-Piece Locking NutISO 7042AISI 316L Stainless SteelM12 (12 mm)10 mmTwo-Piece Locking NutJIS B1188SCM435 Alloy Steel, Zinc10 mm8 mmTwo-Piece Locking NutJIS B1188SCM435 Alloy Steel, Zinc12 mm10 mmTwo-Piece Locking NutJIS B1188SCM435 Alloy Steel, Zinc16 mm13 mmTwo-Piece Locking NutJIS B1188SCM435 Alloy Steel, Zinc20 mm16 mmTwo-Piece Locking NutANSI B18.16.5ASTM A194 Grade 2H, HDG0.5"0.375"Two-Piece Locking NutANSI B18.16.5ASTM A194 Grade 2H, HDG0.75"0.5"Two-Piece Locking NutANSI B18.16.5ASTM A194 Grade 2H, HDG1"0.625"Two-Piece Locking NutANSI B18.16.5ASTM A194 Grade 2H, HDG1.25"0.75"