S-91201A035 0.656" ID x 1.25" OD Oversized Washers
Oversized Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior load distribution with 1.25" outer diameter to prevent surface damage and material embedment
- Precise 5/8" screw compatibility through 0.656" inner diameter for secure, vibration-resistant fastening
- Enhanced durability with Rockwell B84 hardness steel that resists deformation under heavy loads
- Consistent performance maintained by 0.245-0.255" thickness tolerance for reliable spacing and tension
- Environmental compliance assurance with full RoHS 3 and REACH adherence for global industrial applications
- Long-term corrosion resistance through high-quality steel construction in demanding environments
- Reduced maintenance costs through reliable, heavy-duty construction that withstands repeated stress cycles
Professional Applications & Engineering Value
This steel flat washer delivers critical engineering solutions where load distribution and vibration resistance are paramount. The Rockwell B84 hardness material provides exceptional resistance to deformation under heavy-duty clamping forces, making it ideal for construction equipment, industrial machinery, and structural assemblies using 5/8" screw fasteners. The precise 0.656" ID ensures perfect screw alignment while the 1.25" OD creates optimal surface contact area, preventing joint loosening and material fatigue in high-stress applications. This industrial washer maintains integrity across temperature variations and mechanical stresses, offering reliable performance in construction, manufacturing, and mechanical systems where failure is not an option.
Specification Summary & Compliance
Manufactured to inch system precision standards with inner diameter of 0.656", outer diameter of 1.25", and thickness tolerance of 0.245-0.255". The flat washer is engineered for 5/8" screw size applications with Rockwell B84 hardness material specification. Fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead as alloying element in steel and REACH (EC 1907/2006) regulations current as of January 17, 2023, covering 233 SVHC substances.
