Product Details

Our DIN 1663 Stainless Steel Flange Nylock Nuts are engineered with a multi-functional design to ensure a secure, lasting connection.

• Dual Anti-Loosening Mechanism: This nut offers two layers of security against vibration and loosening:
  1. Nylon Locking Insert: A nylon collar at the top of the nut creates a prevailing torque as it is threaded onto a bolt. This friction grip actively resists loosening, even under constant vibration, shock, and dynamic loads.
  2. Integrated Flange: The wide flange at the base increases the surface area contact with the workpiece, adding frictional resistance and stability to the joint.
• The Stainless Steel Advantage – Grades for Every Environment:
  • A4 Stainless Steel (316): The ultimate choice for maximum corrosion resistance. Containing molybdenum, A4/316 stainless steel is highly resistant to chlorides, acids, and saltwater, making it essential for marine, coastal, chemical processing, and wastewater treatment applications. Available in high-strength A4-70 and A4-80 classes.
  • A2 Stainless Steel (304): The industry standard for versatile, all-around performance. A2/304 offers excellent corrosion resistance in freshwater, atmospheric, and food-grade environments. It is ideal for automotive, construction, and general industrial use. Available in the A2-70 strength class.
• Integrated Flange for Load Distribution and Surface Protection: The built-in flange acts as an integrated washer, distributing the clamping force over a wider area. This prevents damage to the mating surface, especially on softer materials, and eliminates the need to source and handle separate washers, streamlining the assembly process.
• DIN 1663 Standard for Guaranteed Performance: Manufactured in strict compliance with the DIN 1663 standard, these nuts ensure dimensional accuracy, consistent thread profiles, and reliable locking performance. This guarantees a perfect fit and dependable function in every application.

Product Parameters

The technical specifications for our Stainless Steel DIN 1663 Flange Nylock Nuts are detailed below.

Product Features

Our DIN 1663 Stainless Steel Flange Nylock Nuts are the superior choice for secure, maintenance-free fastening.

• All-in-One Fastening Solution: Combines a nut, washer, and locking mechanism into a single component, simplifying inventory and speeding up assembly.
• Superior Vibration Resistance: The nylon insert provides a reliable prevailing torque that prevents self-loosening in high-vibration environments.
• Exceptional Corrosion Resistance: A2 (304) and A4 (316) stainless steel options provide long-term durability in everything from general outdoor use to harsh marine and chemical conditions.
• Protects Mating Surfaces: The integrated flange distributes the load evenly, preventing damage, indentation, or marring of the workpiece surface.
• High Strength for Demanding Loads: Available in strength classes 70 (700 MPa tensile strength) and 80 (800 MPa tensile strength), making them suitable for load-bearing and critical joints.
• Reusable Performance: While the locking effectiveness may decrease with each use, these nuts can typically be reused a limited number of times in non-critical applications.

Product Applications

The unique combination of features makes these nuts indispensable across a wide range of demanding industries.

• Automotive Industry: Perfect for securing suspension components, engine mounts, chassis assemblies, and other parts subjected to constant vibration.
• Marine and Boating (A4/316): Essential for deck hardware, rigging, engine installations, and any fastener exposed to saltwater and corrosive marine air.
• Industrial Machinery: Ideal for securing motors, pumps, conveyor systems, and other equipment that generates significant vibration during operation.
• Aerospace and Defense: Used in applications where fastener security and reliability are paramount.
• Food and Beverage Processing (A2/304 or A4/316): The hygienic and corrosion-resistant properties are ideal for processing and packaging equipment.
• Outdoor and Structural Applications: Secures railings, signage, solar panel installations, and recreational equipment exposed to the elements.