Hillman #10 x 1-1/2 in. Hex Washer Head Self-Piercing Sheeter Screw with Neoprene Washer, 1 lb. at Tractor Supply Co.
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1/4" ID Rubber Flat Washers 3/4" OD 1/16" Thick EPDM Gasket Sealing Spacer M6 – ASA College: Florida
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