S-91080A113 Easy-Install Slotted Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
• Enhanced load distribution from the 1.75" outer diameter, reducing surface pressure and preventing material damage under heavy-duty use.
• Precise screw alignment and secure fastening thanks to the 1 1/16" slot width and 1 3/8" slot depth, ensuring compatibility with 1" screws.
• Exceptional mechanical strength and durability provided by Rockwell B68 hardness, resisting deformation under high stress.
• Reliable regulatory compliance with RoHS 3 and REACH standards, meeting strict environmental and safety requirements for industrial components.
• Consistent dimensional accuracy in inch measurements, ensuring easy integration with existing inch-system machinery and fasteners.
• Long-term performance in demanding applications due to the robust material and precise slot design, minimizing maintenance needs.

Professional Applications & Engineering Value

This heavy-duty slotted washer is engineered to address common industrial challenges such as fastener loosening, corrosion-induced failure, and regulatory non-compliance. Made from 18-8 stainless steel, it offers excellent resistance to rust and chemical exposure, making it suitable for applications in marine, chemical processing, and construction industries. The precise slot dimensions (1 1/16" width and 1 3/8" depth) ensure optimal engagement with 1" screws, providing secure fastening in high-vibration environments like machinery assemblies and structural frameworks. Its Rockwell B68 hardness enhances wear resistance, reducing the risk of washer failure under repetitive loads. By combining material durability with exacting inch-system specifications, this washer delivers reliable performance, extends equipment lifespan, and supports compliance in regulated sectors.

Specification Summary & Compliance

This washer adheres to standard inch measurements with an OD of 1.75", thickness range of 0.084-0.097", slot width of 1 1/16", and slot depth of 1 3/8", designed for use with 1" screw sizes. It meets industry standards for dimensional accuracy and is manufactured from 18-8 stainless steel with a hardness of Rockwell B68. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial applications requiring environmental and safety conformity.