Extra Thick Flat Washers
Hardened Flat Washers in Grade 8 Yellow Zinc Plated Steel
- Grade 8 extra thick flat washers are made to distribute extra pressure from fasteners
- Less likely to damage the material
- Used to distribute loads of threaded fasteners
- Grade 8 yellow zinc is corrosion resistant
- Can act as spacers on a fastener
- Commonly used on:
- Decks
- Docks
- Large Timber Projects
- REACH and RoHS Compliant
- Made in the USA
Extra Thick Flat Washer Specifications
| Washer Sizes | Inner Diameter (ID) | Outer Diameter (OD) | Thickness |
| 1/4" | 9/32" (0.281") | 5/8" (0.625") | Max 0.125" - Min 0.100" |
| 5/16" | 0.344" | 0.688" | Max 0.125" - Min 0.100" |
| 3/8" | 13/32" (0.4063) | 13/16" (0.8125) | Max 0.125" - Min 0.100" |
| 7/16" | 0.469" | 0.922" | Max 0.125" - Min 0.100" |
| 1/2" | 0.531" | 1.062" | Max 0.125" - Min 0.100" |
| 9/16" | 19/32" (0.594") | 1-5/32" (1.156") | 3/16" (0.1875") |
| 5/8" | 21/32" (0.656") | 1-5/16" (1.3125") | 3/16" (0.1875") |
| 3/4" | 13/16" (0.8125") | 1-15/32" (1.469") | 3/16" (0.1875") |
| 7/8" | 15/16" (0.9375") | 1-3/4" (1.75") | 3/16" (0.1875") |
| 1" | 1-1/16" (1.0625") | 2" | 1/4" (0.25") |
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