S-97416A135 0.531" ID x 1.062" OD ASME B18.21.1 SAE Washers

SAE Washers

1251FA00305 SAE Washers
1251FA00305 SAE Washers

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

Part No.
Part No. 1251FA00305
Equivalent to mcmaster :
97416A135

Basic Information

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

Dimension Parameters

ID 0.531"
OD 1.062"
Thickness 0.074-0.121"

Material & Strength Parameters

Material Black-Oxide Steel
Hardness Not Rated

Installation & Application Parameters

For Screw Size 1/2"

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (01/17/2023, 233 SVHC) Compliant
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Superior corrosion resistance with black-oxide steel finish for extended service life in harsh industrial environments
  • Precise dimensional fit with 0.531" ID and 1.062" OD ensuring optimal load distribution for 1/2" fasteners
  • Enhanced surface protection that maintains material integrity while preventing galling and seizing
  • Industry-standard compliance with ASME B18.21.1 specifications for reliable mechanical performance
  • Environmental responsibility through full RoHS 3 and REACH compliance for sustainable operations
  • Versatile application capability across multiple industrial sectors requiring inch-system components
  • Consistent thickness tolerance (0.074-0.121") for uniform pressure distribution in assembled joints

Professional Applications & Engineering Value

These SAE flat washers engineered from black-oxide steel provide critical solutions for industrial assembly challenges where corrosion resistance and dimensional precision are paramount. The black-oxide surface treatment creates a protective barrier against moisture and chemical exposure, significantly extending component lifespan in demanding applications such as heavy machinery, automotive systems, and structural frameworks. The precisely controlled inner diameter (0.531") and outer diameter (1.062") ensure perfect compatibility with 1/2" screws, distributing clamp load effectively to prevent joint loosening and surface damage. Manufactured to ASME B18.21.1 standards, these washers deliver consistent performance in vibration-prone environments, making them ideal for maintenance, repair, and OEM operations requiring reliable inch-system fastening components.

Specification Summary & Compliance

This flat washer features dimensional specifications of 0.531" ID × 1.062" OD with thickness ranging 0.074-0.121", specifically designed for 1/2" screw applications. Manufactured in compliance with ASME B18.21.1 standards for mechanical washers, ensuring consistent quality and performance. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental responsibility and workplace safety adherence. Constructed from black-oxide steel for enhanced durability in industrial environments.

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