Also Known As Blanking Plugs. 6mm, 9mm, 12mm, 16mm, 20mm, 25mm, 32mm, 38mm& 50mm. Panel Thickness:1.6mm. (This size refers to the hole you are bunging).
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1-20Pcs Silicone Rubber Grommet Plugs With Snap-on Round Hollow Cable Wiring Protect Bush Black 4.5mm-50.6mm
Aliexpress UK
Made from high quality, flexible, food grade silicone. Temperature resistant from -40˚C to +250˚C. Bulk orders available - Get in touch for a quote. Easy to fit and remove. Get in touch to check availability.
eBay
Black White 5mm to 201mm Round Hollow Silicone Rubber Grommet Hole Plug Wire Cable Wiring Protection Bushing O-Ring Gasket
Aliexpress UK
Available Sizes: 6mm, 9mm, 12mm, 16mm, 20mm, 25mm, 32mm, 38mm, 50mm. 50mm 50.5mm 1.6mm 7.3mm 57.2mm. 50mm 50.5mm 1.6mm 44.5mm 11.1mm 60.3mm. Available Quantities: 10, 25, 50, 100. Panel Hole Size (A).
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7-50 mm Blanking Blind Rubber Wiring Grommets Hole Plug Car Rubber Closure Body Stopfen Electrical Wire Gasket Single Sided
Aliexpress UK
Product colour: black. Material: natural rubber, EPDM rubber. No burrs on the edges, smooth and flat without scratching. Protect wires from cabinet scratches; waterproof and dustproof to extend the service life of machinery.
eBay
Black 3mm-50mm Rubber Snap-on Grommet Hole Plugs End Caps Bung Wire Cable Protect Bush
Aliexpress UK
50mm (Item No BG50) = 50.5mm Minimum Panel Hole Size. 6mm (Item No BG6) = 6.4mm Minimum Panel Hole Size. 9mm (Item No BG9) = 9.3mm Minimum Panel Hole Size. 12mm (Item No BG12) = 12.3mm Minimum Panel Hole Size.
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170pcs Black Rubber Grommet Firewall Hole Plug Retaining Ring Set Car Electrical Wire Gasket Kit for Valve Water Pipe Tools Set
Aliexpress UK
Sizes Available: 6mm, 9mm, 12mm, 16mm, 20mm, 25mm, 32mm, 38mm& 50mm. C - Cable Hole. A - Panel Hole Size. Quantities Available: 2, 5, 10 & 25.
eBay
Black White Waterproof Protect Wire Sealing Rubber Cable Grommet Electrical Plug Gasket High Temperature Resistant O Ring Kit
Aliexpress UK
Application: Cylinder, valve, pump, electrical appliance, chemical pipe, spray, water pipe, decoration, etc. Color: Black.
eBay
Black 4.5mm-50.6mm Silicone Rubber Snap-on Grommet Hole Plugs End Caps Bung Wire Cable Protect Bush
Aliexpress UK
Do not dismiss your dream. Car Blade Fuse. Solder Seal Sleeve. Heat Shrink Connectors. Heat Shrink Tubing. Material: Rubber. Color: Black. Do not run through your life so fast that you forget not only where you have been, but also where you are.
eBay
1-10PCS 5mm-28mm White Hollow Silicone Rubber Snap-on Grommet Hole Plug Ring Gasket Wire Cable Wiring Protect Bush Seal Stopper
Aliexpress UK