0.532" ID x 1-3/16 inch OD Bonded Sealing Washer, 20 Gauge Galvanized Steel with 0.065 EPDM Rubber. Fits a threaded 1/2 inch sized fastener tightly. 2000/Carton. Price/Carton.
FEATURES: Materials: ASTM A-527 20 Gauge Hot Dip Galvanized Steel; 0.065" thick Black EPDM Rubber, 70 durometer hardness per ASTM D2000;
Thickness: Overall washer height before compression about .130"; Available compression about 0.030"; EPDM thickness a