1-1/4" ID x 2-1/2" OD 20-Gauge Galvanized Steel Backing with Bonded EPDM Rubber Washer. 500/Box. Price/Box.
MATERIALS: ASTM A-527 20 Gauge Galvanized Steel; Black EPDM Rubber, 70 durometer hardness per ASTM D2000; EPDM thickness about 0.065".
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OPTIONS: Also available with backing materials of high tensile aluminum, 304 stainless and 316 stainless steel, with facing (sealing) materials of neoprene or EPDM, and in boxes of 1000 - 2000. Please email for current pricing and available sizes. Also available in 2-1/2" OD x 1-1/2" ID, and 1-1/2" OD x 3/4" ID.
similar product terms: seal washer, sealing washer, stainless steel sealing washer, flashing washer, anchor washer, spike washer, bonded sealing washer, roofing washer