S-91434A129 2.125" ID x 3.75" OD ASME B18.21.1 SAE Washers
SAE 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
- Exceptional durability with Rockwell C38 hardness for long service life in demanding applications
- Superior corrosion resistance through black-coated steel construction, extending component lifespan
- Heavy-duty Grade 8 performance ensuring reliable load distribution and vibration resistance
- Precision dimensional accuracy with 2.125" ID and 3.75" OD for perfect fit with 2" screws
- Industry-standard compliance meeting ASME B18.21.1 specifications for consistent quality
- Environmental regulation compliance with RoHS 3 and REACH standards for global applications
- Optimized thickness range (0.178-0.196") providing ideal compression and surface protection
Professional Applications & Engineering Value
This heavy-duty Grade 8 SAE flat washer delivers exceptional engineering value through its black corrosion-resistant coated steel construction, specifically designed to address common industrial challenges. The precision flat washer configuration prevents fastener loosening under vibration while distributing load evenly across surfaces. The corrosion-resistant properties make it ideal for harsh environments where moisture and chemicals threaten fastener integrity. Engineered to ASME B18.21.1 specifications, this industrial washer provides reliable performance in heavy machinery, construction equipment, and transportation applications where consistent clamping force and surface protection are critical. The inch system dimensions ensure compatibility with standard 2 inch screw size fasteners across various industrial sectors.
Specification Summary & Compliance
This SAE flat washer features precise dimensional specifications including 2.125" inner diameter, 3.75" outer diameter, and thickness ranging from 0.178" to 0.196". Manufactured to ASME B18.21.1 standards with Grade 8 strength classification and Rockwell C38 hardness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in global industrial applications while maintaining superior corrosion resistance through its black-coated steel construction.
