S-3127N13 5.3 mm ID x 22 mm OD Finishing Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance in harsh environments due to 316 stainless steel construction, reducing maintenance and replacement costs.
• Precise 90° countersink angle ensures a flush, secure fit with M5 screws, preventing snagging and improving assembly aesthetics.
• Optimized dimensions (22mm OD, 5.3mm ID) provide reliable load distribution and alignment for M5 fasteners, enhancing joint integrity.
• Superior mechanical strength with a Rockwell B83 hardness rating, offering excellent resistance to deformation under load.
• Full compliance with RoHS 3 and REACH regulations, ensuring safety and environmental responsibility for global supply chains.
• Durable performance in demanding applications, from marine to chemical processing, thanks to its robust material and precise engineering.
• Metric system compatibility simplifies sourcing and integration into international industrial projects.

Professional Applications & Engineering Value

This 316 stainless steel countersunk washer is engineered to address critical challenges in corrosive and high-stress environments. Its M5 compatibility and 90° countersink angle ensure a seamless, low-profile fit, eliminating protrusions that can lead to equipment damage or safety hazards. The high-corrosion-resistant properties of 316 stainless steel make it ideal for applications in marine, chemical processing, and food industries, where moisture and aggressive substances are prevalent. By providing reliable load distribution and maintaining thread integrity, this washer reduces the risk of fastener loosening and joint failure, thereby extending the lifespan of assemblies. Its precision manufacturing supports efficient installation in industrial washers and metric system-based projects, ensuring consistent performance and reducing downtime.

Specification Summary & Compliance

This washer adheres to precise dimensional standards with an Inside Diameter (ID) of 5.3 mm, Outside Diameter (OD) of 22 mm, and Thickness ranging from 3.2 to 3.8 mm, designed for M5 screw size compatibility. It features a 90° countersink angle and is manufactured from 316 stainless steel with a hardness of Rockwell B83 for consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety requirements for industrial use.