S-93960A160 0.406" ID x 0.812" OD ASME B18.21.1 SAE Washers

SAE Washers

1251FA00228 SAE Washers
1251FA00228 SAE Washers

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

Part No.
Part No. 1251FA00228
Equivalent to mcmaster :
93960A160

Basic Information

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

Dimension Parameters

ID 0.406"
OD 0.812"
Thickness 0.051-0.080"

Material & Strength Parameters

Material Chrome-Plated Steel
Hardness Not Rated

Installation & Application Parameters

For Screw Size 3/8"

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (06/14/2023, 235 SVHC) Compliant
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Superior corrosion resistance from chrome plating extends service life in harsh industrial environments
  • Precise dimensional accuracy with 0.406" ID and 0.812" OD ensures perfect fit for 3/8" fasteners
  • Enhanced load distribution through flat washer design prevents surface damage and joint loosening
  • Industry-standard compliance with ASME B18.21.1 guarantees consistent quality and interchangeability
  • Environmental responsibility with full RoHS 3 and REACH compliance for sustainable operations
  • Durable steel construction provides reliable performance under mechanical stress and vibration
  • Versatile application readiness for various industrial assemblies requiring inch-system components

Professional Applications & Engineering Value

This SAE flat washer delivers critical engineering solutions where corrosion resistance and dimensional precision are paramount. The chrome plated steel construction creates a protective barrier against moisture, chemicals, and environmental degradation, significantly extending component lifespan in demanding applications. With precise 0.406" ID and 0.812" OD dimensions, these 3/8" washers provide optimal load distribution across joint surfaces, preventing fastener embedding and maintaining clamp force integrity. The ASME B18.21.1 compliance ensures consistent performance in automotive assemblies, machinery manufacturing, and structural applications where reliable inch-system washers are essential for maintaining operational safety and reducing maintenance frequency.

Specification Summary & Compliance

Manufactured to ASME B18.21.1 standards with precise dimensional tolerances for inch-system applications. Features include 0.406" inner diameter, 0.812" outer diameter, and thickness ranging 0.051-0.080". Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial sectors. Chrome plated steel construction provides consistent performance in mechanical fastening applications requiring reliable flat washers.

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