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3/16 in Back Up Washer - 20000 count Racers Special | Description | "A" Diameter | "D" Diameter | | | | 3/16" backup washer | | | | | | | | | | | | |  | Backup washers are very important when it comes to race car fabrication. Addition of the washer increases the strength of the joint many times. Especially useful when riveting to fiberglass or plastic noses! |
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