| · | Annular ring thread, large checkered head, heavy EPDM washers assembled |
| · | Best for application of asphalt panel roof systems, particularly in corrosive environments |
| · | Also recommended for longest life for galvanized sheet metal roofing and siding |
| · | Standard washer dimensions: 9/16" O.D. X 1/8" thick |
| · | Annular ring threads and large, resilient EDPM washers combine for permanent weather tight fastening |
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