S-91525A332 0.5" ID x 1.25" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments due to premium 316 stainless steel construction
• Precise fit and reliable load distribution for 7/16" screws with a 0.5" inner diameter and 1.25" outer diameter
• Enhanced mechanical durability and deformation resistance from a Rockwell B68 hardness rating
• Consistent performance and secure fastening ensured by a controlled thickness range of 0.110" to 0.140"
• Compliance with stringent industrial safety and environmental regulations, being RoHS 3 and REACH compliant
• Long-term reliability and reduced maintenance in demanding applications thanks to its robust material and design
• Ideal for heavy-duty and corrosive applications where standard washers may fail prematurely

Professional Applications & Engineering Value

This 316 stainless steel flat washer is engineered to address critical challenges in industrial and mechanical assemblies, particularly where corrosion resistance and structural integrity are paramount. Its inch system dimensions, including a 0.5" ID and 1.25" OD, provide an optimal fit for 7/16" screw sizes, ensuring even load distribution and preventing surface damage in high-stress environments. The use of 316 stainless steel offers exceptional protection against chemicals, moisture, and extreme temperatures, making it suitable for marine, chemical processing, and outdoor applications. Combined with a Rockwell B68 hardness, this washer maintains its shape under heavy loads, reducing the risk of fastener loosening and extending the service life of your equipment. This makes it a reliable choice for engineers and procurement specialists seeking durable, compliant components that minimize downtime and maintenance costs.

Specification Summary & Compliance

This flat washer adheres to standard inch system measurements with an inner diameter of 0.5", outer diameter of 1.25", and thickness ranging from 0.110" to 0.140", designed specifically for 7/16" screw sizes. It is manufactured from 316 stainless steel with a hardness of Rockwell B68 to ensure dimensional stability and strength. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in various industrial applications without hazardous substances.