S-98023A034 0.594" ID x 1.156" OD ASME B18.21.1 SAE Washers

SAE Washers

1251FA00315 SAE Washers
1251FA00315 SAE Washers

Image may differ from product. See technical specification for details.

Part No.
Part No. 1251FA00315
Equivalent to mcmaster :
98023A034

Basic Information

System of Measurement Inch
Washer Type Flat
Washer Designation SAE
Specifications Met ASME B18.21.1

Dimension Parameters

ID 0.594"
OD 1.156"
Thickness 0.074-0.121"

Material & Strength Parameters

Material Zinc Yellow-Chromate Plated Steel
Hardness Rockwell C38
Fastener Strength Grade/Class Grade 8

Installation & Application Parameters

For Screw Size 9/16"

Finish & Compliance Parameters

REACH REACH (EC 1907/2006) (06/14/2023, 235 SVHC) Compliant
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Key Features & Benefits at a Glance

  • Exceptional corrosion resistance with zinc yellow-chromate plating for extended service life in harsh environments
  • Superior load distribution with precise 0.594" ID and 1.156" OD dimensions to prevent surface damage and fastener loosening
  • High-strength performance with Grade 8 classification and Rockwell C38 hardness for demanding industrial applications
  • Reliable dimensional consistency manufactured to ASME B18.21.1 specifications for perfect fit with 9/16" fasteners
  • Enhanced durability through hardened steel construction that withstands vibration and heavy mechanical stress
  • Regulatory compliance assurance with REACH SVHC compliance for safe use in regulated industries
  • Optimized thickness range (0.074-0.121") providing ideal compression and spacing capabilities

Professional Applications & Engineering Value

These Grade 8 flat washers deliver critical engineering solutions where vibration resistance and corrosion protection are paramount. The zinc yellow-chromate plated steel construction creates a durable barrier against environmental degradation, while the Rockwell C38 hardness ensures maintained structural integrity under extreme pressure. Ideal for heavy machinery assembly, construction equipment, and industrial manufacturing applications, these SAE standard washers prevent joint failure by distributing clamp load evenly across surfaces. The precise 9/16" screw size compatibility and ASME B18.21.1 compliance guarantee reliable performance in critical fastening systems, reducing maintenance frequency and downtime in demanding operational environments.

Specification Summary & Compliance

Manufactured to exact ASME B18.21.1 dimensional standards with inner diameter of 0.594" and outer diameter of 1.156". Features thickness range of 0.074-0.121" for optimal performance with 9/16" fasteners. Material certification includes Grade 8 strength classification and Rockwell C38 hardness verification. Full compliance with REACH regulations (EC 1907/2006) regarding SVHC substances as of June 14, 2023. The zinc yellow-chromate plating provides superior corrosion protection while maintaining dimensional precision for reliable industrial fastening applications.

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