Snap-In Knockout Bushing Grommets 1/2 Inch Black Nylon Plastic Cable Hole Grommets for Wiring and Electrical Installations, Round Locking Grommets for Wires, Cords, Hoses, Tubing, 50 Pieces

50-Pack Black Snap-In Knockout Grommets, 1/2in Nylon
✔️ 50pcs, mounting dia 1/2in, fits 0.51-0.53in holes

These snap-in knockout insulating bushings convert rough knockout holes into smooth, insulated passages for cables, cords, hoses and tubing. They’re typically used in electrical enclosures, control panels, cabinets, and industrial machinery to protect wiring and reduce wear.

✅ Material: nylon 6/6, UL 94V-2 flame retardant
✅ Pack size: 50 pieces; mounting dia 1/2 in (12.7 mm)
✅ Hole fit: fits hole diameter 0.51-0.53 in (12.9-13.5 mm)
✅ Inner/Outer: ID 0.39 in (10.0 mm); OD 0.65 in (16.4 mm)
✅ Height: 0.41 in (10.52 mm)
✅ Installation: snaps into knockout holes in panels up to 1/8 in (3.2 mm) thick

💡 What is a knockout insulating bushing used for in electrical enclosures and panels? This handy part makes routing cables neater and safer by smoothing rough edges and reducing vibration. - Protects wires from sharp metal edges in enclosures - Cushions vibration and reduces abrasion on cables - Helps organize wiring in electrical and telecom setups - Works with metal and plastic boxes in residential and industrial gear