About this item Nylon Plastic Imported PACKAGE&SIZE: You will got 40pcs of black snap-in knockout bushing for this package with Mounting Dia: 5/8"; Fits hole diameter: 0.63~0.68in(15.9~17.2mm); Inner Dia: 0.48in(12.3mm); Outer Dia: 0.73in(18.5mm); Height: 0.42in(10.6mm) HIGH QUALITY MATERIAL: EASYEAH plastic cable grommets are made of tough, UL certified flame retardant nylon 6/6, 94V-2 UL, with good insulation and protection effect, wear-resistant, corrosion-resistant, lightweight, strong and durable, and will not crack or break, even when applied to maximum wire combinations under extreme pressure EASY TO INSTALL: Easily locks into hole firmly with fingertip pressure; multiple locking steps lock the board firmly; Our plastic snap bushings protect electrical cables, ropes, tubes and utility lines passing through metal chassis 1/8 maximum steel thickness GREAT FUNCTION: Our knockout insulating bushing converts raw edged knockout holes to smooth, neat, insulated holes and absorbs vibration and cushions; Our cable hose bushing grommet can also fix cables and prevent abrasion or scratches to improve safety VERSATILE APPLICATION: Snaps into electrical outlet box, switch box metallic box or other enclosure; Our wire bushing provide insulation and mechanical protection for electrical and telecommunication cables in most residential, industrial, automotive equipment and machinery
