The ANSI/ASME B18.16.6 American All-Metal Torque Type Automotive Hexagon Lock Nut is a premium fastening solution designed to excel in high-stakes automotive environments where reliability is non-negotiable. Engineered with an innovative all-metal torque-locking mechanism, it eliminates the risk of loosening caused by vibration or thermal cycling, making it indispensable for critical applications like chassis joints, suspension linkages, and drivetrain assemblies. The hexagonal body ensures compatibility with standard tools, enabling swift installation and maintenance, while the precision-formed threads maintain consistent clamp load even under extreme dynamic stresses. Constructed from high-grade alloy steel with a durable protective coating—such as zinc or manganese phosphate—it resists corrosion from road chemicals and moisture, extending service life in harsh under-vehicle conditions. Automotive engineers specify this nut for torque-sensitive systems, including brake caliper mounts and steering knuckles, where micrometer-level preload accuracy directly impacts safety and performance. By meeting stringent ANSI/ASME dimensional and mechanical standards, it guarantees seamless integration with existing designs, reducing assembly errors and downtime. For manufacturers prioritizing fail-safe joints without compromising on weight or space, the B18.16.6 delivers unmatched tensile strength, reusability, and compliance, solidifying its role as the go-to locking fastener for next-generation automotive innovation.
Designed for Ease of Use:
We recognize that efficiency on the assembly line and during maintenance is crucial. The familiar hexagonal body of this lock nut ensures seamless compatibility with standard automotive tools, allowing for swift and straightforward installation and removal. This user-friendly design minimizes assembly errors and reduces valuable downtime, contributing to overall operational efficiency.
Key Advantages for Your Applications:
- Unrivaled Resistance to Loosening: The all-metal torque-locking mechanism guarantees a secure hold under vibration and thermal cycling.
- Consistent Clamp Load: Precision-formed threads maintain a stable and predictable clamp load, even when subjected to extreme dynamic stresses encountered in demanding automotive applications.
- Standard Tool Compatibility: The hexagonal body integrates seamlessly with existing standard tools, simplifying installation and maintenance procedures.
- Exceptional Durability: Constructed from high-grade alloy steel, ensuring superior strength and long-lasting performance in critical joints.
- Superior Corrosion Resistance: Protected by a robust coating, such as zinc plating or manganese phosphate, it effectively resists corrosion from harsh road chemicals, moisture, and other environmental factors prevalent in under-vehicle conditions, significantly extending the service life of the fastener.
- Micrometer-Level Preload Accuracy: Specifically engineered for torque-sensitive systems, allowing for precise preload control that directly impacts the safety and performance of critical components.
- Seamless Integration: Meets stringent ANSI/ASME dimensional and mechanical standards, guaranteeing effortless integration with existing automotive designs and minimizing assembly complications.
- Fail-Safe Joint Integrity: Provides manufacturers with the confidence of a highly reliable joint, minimizing the risk of failure without adding unnecessary weight or bulk to the assembly.
- Exceptional Tensile Strength: The high-grade alloy steel construction delivers unmatched tensile strength, ensuring the integrity of even the most demanding automotive connections.
- Reusability: Designed for potential reuse in maintenance operations, offering long-term cost-effectiveness.
- Full Compliance: Meets and exceeds stringent ANSI/ASME B18.16.6 standards, guaranteeing adherence to industry best practices and regulatory requirements.
- Contribution to Next-Generation Innovation: A trusted component for engineers pushing the boundaries of automotive design and performance.
Ideal for:
- Chassis Joints: Ensuring the structural integrity and stability of the vehicle frame.
- Suspension Linkages: Maintaining precise control and responsiveness of the suspension system.
- Drivetrain Assemblies: Securing critical components within the power transmission system.
- Brake Caliper Mounts: Providing a fail-safe connection for a vital safety system.
- Steering Knuckles: Ensuring accurate and reliable steering control.
- Wheel Hub Assemblies: Maintaining the secure attachment of wheels to the vehicle.
- Engine Mounts: Providing a robust and vibration-resistant connection for the engine.
- Exhaust System Mounts: Withstanding high temperatures and vibrations while ensuring secure attachment.
- Any torque-sensitive automotive application where loosening can compromise safety or performance.
Product name | Standard | Material | Diameter | Length |
Torque Type Hexagon Nut | GB/T 6170 - 2015 | Medium Carbon Steel, Zinc Plated | M6 | 5 mm |
Torque Type Hexagon Nut | GB/T 6170 - 2015 | Medium Carbon Steel, Zinc Plated | M8 | 6 mm |
Torque Type Hexagon Nut | GB/T 6170 - 2015 | Medium Carbon Steel, Zinc Plated | M10 | 8 mm |
Torque Type Hexagon Nut | GB/T 6170 - 2015 | Medium Carbon Steel, Zinc Plated | M12 | 10 mm |
Torque Type Hexagon Nut | GB/T 6170 - 2015 | Medium Carbon Steel, Zinc Plated | M16 | 14 mm |
Torque Type Hexagon Nut | GB/T 6170 - 2015 | Medium Carbon Steel, Zinc Plated | M20 | 18 mm |
Torque Type Hexagon Nut | ASME B18.2.2 - 2016 | ASTM A563 Grade A, Zinc Plated | 1/4" | 0.25" |
Torque Type Hexagon Nut | ASME B18.2.2 - 2016 | ASTM A563 Grade A, Zinc Plated | 5/16" | 0.312" |
Torque Type Hexagon Nut | ASME B18.2.2 - 2016 | ASTM A563 Grade A, Zinc Plated | 3/8" | 0.375" |
Torque Type Hexagon Nut | ASME B18.2.2 - 2016 | ASTM A563 Grade A, Zinc Plated | 7/16" | 0.438" |
Torque Type Hexagon Nut | ASME B18.2.2 - 2016 | ASTM A563 Grade A, Zinc Plated | 1/2" | 0.5" |
Torque Type Hexagon Nut | ASME B18.2.2 - 2016 | ASTM A563 Grade A, Zinc Plated | 9/16" | 0.562" |
Torque Type Hexagon Nut | ANSI B18.16.3 - 2013 | SAE J429 Grade 5, Zinc Plated | 0.25" | 0.25" |
Torque Type Hexagon Nut | ANSI B18.16.3 - 2013 | SAE J429 Grade 5, Zinc Plated | 0.3125" | 0.3125" |
Torque Type Hexagon Nut | ANSI B18.16.3 - 2013 | SAE J429 Grade 5, Zinc Plated | 0.375" | 0.375" |
Torque Type Hexagon Nut | ANSI B18.16.3 - 2013 | SAE J429 Grade 5, Zinc Plated | 0.4375" | 0.4375" |
Torque Type Hexagon Nut | ANSI B18.16.3 - 2013 | SAE J429 Grade 5, Zinc Plated | 0.5" | 0.5" |
Torque Type Hexagon Nut | ANSI B18.16.3 - 2013 | SAE J429 Grade 5, Zinc Plated | 0.5625" | 0.5625" |
Torque Type Hexagon Nut | DIN 980M - 2017 | 10B21 Steel, Zinc Plated | M6 | 5 mm |
Torque Type Hexagon Nut | DIN 980M - 2017 | 10B21 Steel, Zinc Plated | M8 | 6 mm |
Torque Type Hexagon Nut | DIN 980M - 2017 | 10B21 Steel, Zinc Plated | M10 | 8 mm |
Torque Type Hexagon Nut | DIN 980M - 2017 | 10B21 Steel, Zinc Plated | M12 | 10 mm |
Torque Type Hexagon Nut | DIN 980M - 2017 | 10B21 Steel, Zinc Plated | M16 | 14 mm |
Torque Type Hexagon Nut | DIN 980M - 2017 | 10B21 Steel, Zinc Plated | M20 | 18 mm |