Overview
Shoulder washers are precision-engineered components designed to provide insulation and spacing in various mechanical and electrical assemblies. These washers feature a unique design that includes a cylindrical shoulder extending from the base, allowing them to fit snugly into pre-drilled holes while maintaining a secure barrier between fasteners and the surrounding material. Manufactured from high-quality insulating materials such as nylon, PTFE, or other engineered plastics, shoulder washers offer excellent resistance to wear, corrosion, and electrical conductivity. Their robust construction ensures reliable performance in demanding environments, making them suitable for applications where electrical isolation and mechanical stability are critical. The shoulder design also helps distribute load evenly, reducing stress on the mounting surface and preventing damage during installation or operation.
In industrial settings, shoulder washers are commonly used in electronic assemblies, automotive components, and machinery where precise alignment and insulation are necessary. Their ability to maintain separation between metal parts prevents short circuits and enhances the longevity of the equipment. The manufacturing process involves stringent quality control measures to ensure dimensional accuracy and material integrity, which are essential for consistent performance. The versatility of shoulder washers allows them to accommodate various screw sizes and panel thicknesses, providing a customizable solution for complex assembly requirements. By integrating shoulder washers into designs, engineers can achieve improved durability, electrical safety, and mechanical reliability, making these components indispensable in modern manufacturing and assembly processes.
| Product Type | Shoulder Washer |
| Head Style | Flanged with a Shoulder |
| Manufacturing Process | Injection Molded or Machined |
| Thread Type | Non-threaded (Washer) |
| Common Materials | Nylon, PTFE, Delrin, Phenolic |
| Available Sizes | Various Inner Diameters and Shoulder Lengths to Fit Different Bolt Sizes |
| Strength Features | High Wear Resistance, Electrical Insulation, Vibration Dampening |
| Typical Applications | Electrical Insulation, Spacing, Load Distribution in Assemblies |
| Surface Finishes | Smooth Molded Surface |
| Standards | ASTM D4066, MIL-W-22759 |
| Customization | Custom Sizes, Materials, Threads & Surface Finishes Available |
Ensures exact spacing and alignment for components, improving assembly accuracy and reducing mechanical wear over time.
Manufactured from high-quality materials to withstand mechanical stress and environmental conditions.
Available in stainless steel and brass options for enhanced resistance to corrosion in various environments.
Suitable for automotive, aerospace, electronics, and industrial machinery assemblies requiring precise component positioning.
Designed for quick and secure fitting, reducing assembly time and improving productivity.
Produced under strict quality control to meet international standards and customer specifications.
| Product Type | Shoulder Washer |
| Thread Type | Compatible with metric and imperial fasteners |
| Diameter Range | M3 to M24 |
| Length Range | 5 to 50 mm |
| Available Materials | Stainless Steel, Carbon Steel, Brass |
| Manufacturing Standards | DIN 988, ISO 7089 |
| Surface Finish | Plain, Zinc Plated, Passivated |
| Size (mm) | Shoulder Diameter (mm) | Thickness (mm) |
|---|---|---|
| M3 | 6 | 1.5 |
| M6 | 12 | 2.5 |
| M12 | 20 | 4 |
| M24 | 38 | 6 |