Push these flexible grommets into place to protect wire, cable, and cords by turning rough-edged and uneven holes into smooth, insulated holes. Commonly used in metal panels, they also damp vibration. All of these grommets have a medium hardness rating to offer a balance of cushioning and impact resistance. SBR grommets have good abrasion resistance. They are not for use outdoors. EPDM grommets are UV, ozone, and chemical resistant. They can be used outdoors. Buna-N grommets withstand a wider range of temperatures than other grommets and resist abrasion, oil, and grease. They are not for use outdoors. Grommets that meet MIL-G-3036 resist hot petroleum-based oil and coolant. Grommets that meet MS-35489 and AN931 adhere to military dimensional standards.