Rubber grommet, rubber bushing 1) Material: SBR, nitrile, EPDM, silicone 2) Durometer: 60+/-5 shore A Rubber grommet, rubber bushing:1) Material: SBR, nitrile, EPDM, silicone2) Durometer: 60+/-5 shore A3) Inside dimensions: 9/32" and above 4) Applications: rubber grommets are used to protect or cover through holes withrough edges. The rubber grommet can shield the wire or other material from any ...