A nut-bolt with double washer assembly is a common mechanical fastening solution that includes:
A bolt (typically hexagonal head)
A nut (usually hex nut or lock nut)
Two washers (one under the bolt head and one under the nut)
This configuration is used to distribute load evenly, prevent surface damage, and enhance joint stability. Double washers also reduce the chances of loosening under vibration or thermal expansion.
It is widely used in steel structures, mechanical assemblies, flanged joints, and critical connections that demand long-term durability and safety.
Key Features:
- Complete Fastening Set: Includes bolt, nut, and two washers for secure joint assembly.
- Double Washer Configuration: One washer under the bolt head and one under the nut for even load distribution.
- Standardized Sizes and Threads: Available in metric and imperial sizes, typically as per ISO, DIN, or ASTM standards.
- Material Options: Available in carbon steel, stainless steel, galvanized steel, brass, and alloy steels.
- Reusable and Replaceable: Can be disassembled and reused for maintenance or adjustments.
- Corrosion-Resistant Coatings: Zinc plating, hot-dip galvanizing, or stainless steel for harsh environments.
Available - ( GI) 3“/5LONG 12.5MM SIZE
- Pipe Flange Connections
- Steel Frame Structures
- Heavy Equipment and Machinery
- Automotive and Aerospace Components
- Construction and Civil Works
- Bridges and Tower Installations
- Vibration-Prone Assemblies (e.g., motors, pumps)
- Improved Load Distribution: Double washers reduce stress concentrations on the contact surfaces.
- Prevents Loosening: Enhanced vibration resistance and joint security.
- Protects Surfaces: Washers prevent damage to connected materials during tightening.
- Easy Installation and Removal: Standard tools can be used for quick fastening.
- Durable and Long-Lasting: Designed to perform reliably under mechanical, thermal, or environmental stresses.
- Widely Compatible: Suitable for use with metal, wood, plastic, or composite materials.