S-90339A213 Easy-Install Slotted Washers
Easy-Install Slotted Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
Geometric Parameters
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Key Features & Benefits at a Glance
- Enhanced corrosion resistance through black-oxide steel finish, extending service life in demanding environments
- Superior load distribution with 1.75" outer diameter, preventing surface damage and maintaining joint integrity
- Precision slot alignment featuring 1 1/16" width and 1 3/8" depth for secure tool engagement during installation
- Optimized mechanical strength with Rockwell B40 hardness, resisting deformation under heavy loads
- Industry-standard compatibility designed specifically for 1" screw applications in inch measurement systems
- Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe industrial usage
- Consistent thickness control between 0.084-0.097" ensuring reliable performance in assembly operations
Professional Applications & Engineering Value
This black-oxide steel slotted washer delivers critical engineering solutions for industrial applications where corrosion resistance and mechanical durability are paramount. The heavy-duty construction with precise 1.75" OD and Rockwell B40 hardness prevents fastener loosening under vibration while distributing clamp load effectively across surfaces. Specifically engineered for 1" screw applications, the slotted design with 1 1/16" slot width enables quick installation in machinery assembly, construction projects, and automotive systems where inch-system components are standard. The black-oxide surface treatment provides superior protection against oxidation in humid or chemically aggressive environments, making these industrial washers ideal for outdoor equipment, manufacturing fixtures, and infrastructure projects requiring long-term reliability.
Specification Summary & Compliance
Manufactured to precise dimensional standards with 1.75" OD, 0.084-0.097" thickness, and slot dimensions of 1 1/16" width and 1 3/8" depth. The slotted washer features Rockwell B40 hardness for consistent mechanical performance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and restricted substance adherence for industrial applications.
