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Product Description
Part Number: 37UNT8Y
Diameter: 3/8"
Grade: Grade 8
Finish: Zinc Yellow
Inside Diameter : 7/16" (Min 0.433", Max 0.453")
Outside Diameter: 1" (Min 0.993", Max 1.030")
Thickness : 0.064" - 0.104"
BoltsandNuts.com
3/8" USS Grade 8 Flat Washers Zinc Yellow
Product Description
Part Number: 37UNT8Y
Diameter: 3/8"
Grade: Grade 8
Finish: Zinc Yellow
Inside Diameter : 7/16" (Min 0.433", Max 0.453")
Outside Diameter: 1" (Min 0.993", Max 1.030")
Thickness : 0.064" - 0.104"
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| Grade | Grade 8 Hardened |
| Hardness | Rockwell C33–C39 |
| Diameter | 3/8" |
| Inside Diameter | 0.438" nom |
| Material | Through-hardened steel |
| Specifications Met | ASME B18.22.1 |
| Thickness | 0.083" nom |
| System | Inch |
| Finish | Zinc Yellow |
| Pattern | USS (Wide) series |
| Outside Diameter | 1.000" nom |
Technical Drawing
Not to scale · ASME B18.22.1 · See table for exact dimensions
Technical Dimensions
| Outside Diameter | 1.000" nom |
| Inside Diameter | 0.438" nom |
| Thickness | 0.083" nom |
| Fits Bolt Size | 3/8" |
| Series | USS (Wide) series |
| Material | Through-hardened steel |
Flat round washer that spreads bolt and nut bearing load over a wider area, protecting the joint material and reducing pull-through or marring.
Dimensions conform to ASME B18.22.1 and may vary within specified manufacturing tolerances.
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