S-91717A209 0.656" ID x 1.75" OD Clipped Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from the black-oxide steel finish, extending service life in harsh industrial environments.
• Precise fit and secure fastening with a 0.656" inner diameter designed specifically for 5/8" screws, minimizing play and vibration.
• Enhanced load distribution due to the large 1.75" outer diameter, protecting surfaces from damage under high stress.
• Optimized for confined spaces with a clipped design (1.422" width), allowing for easy installation where full-circle washers won't fit.
• Consistent mechanical strength with a Rockwell B40 hardness rating, ensuring reliable performance and resistance to deformation.
• Guaranteed material safety with full compliance to RoHS 3 and REACH regulations, making it safe for various industrial applications.
• Dimensional reliability with a controlled thickness range of 0.084" to 0.097", ensuring uniform performance in assembly lines.

Professional Applications & Engineering Value

This black-oxide steel clipped washer is engineered to solve critical challenges in heavy machinery, automotive, and construction assemblies. Its clipped design provides a practical solution for tight spaces and welded studs, eliminating the need for complete disassembly during maintenance. The black-oxide coating offers a robust barrier against rust and corrosion, significantly reducing failure rates in humid or outdoor settings. Combined with a Rockwell B40 hardness, it maintains structural integrity under repetitive loads and vibrations, making it a dependable choice for 5/8" screw applications where durability and compliance with industrial safety standards are non-negotiable.

Specification Summary & Compliance

This washer adheres to inch system measurements with an ID of 0.656", OD of 1.75", thickness of 0.084-0.097", and a clipped width of 1.422". It is manufactured from black-oxide steel with a hardness of Rockwell B40, ensuring consistent dimensional accuracy. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for global industrial use without hazardous substances.