Solid Silicone Rubber Plugs Blanking Hole Plugs Push-In Small Bungs Stoppers End Cap Tube Pipe Sealing 3-15mm Black. （The size of the option corresponds to the size of the part in which the rubber plug is inserted into the hole.
eBay
14mm 15mm High Pressure Washer Hose Extension Connector Adapter Copper M22 and Male Thread Female Coupler Adaptor
Aliexpress UK
Produktbeschreibung: Material: Silicone Features: corrosion resistance, acid and alkali resistance, high temperature resistance , UV resistance, aging resistance, long service life, high and low temperature resistance, etc. Role: can be waterproof and sealed Note: Try to choose a size one size larger than the actual measurement aperture, so as to achieve the sealing effect and not fall off. Quantity：1/3/5/10/25/50/100
eBay
1PCS Copper M22 14mm And 15mm Male Thread Female Hose Coupler Adaptor High Pressure Washer Hose Extension Connector Adapter
Aliexpress UK
Material: PP Plastic.
eBay
1-15mm 201 Stainless Steel Taper Gauge Feeler Inner Diameter Ruler Hole Measuring Tool DIY For Taper Aperture Scale
Aliexpress UK
Can be used as spraying plugs, test tube plugs. ◼️ In piping systems, silicone rubber plugs can be used for temporary or permanent sealing of pipelines. ◼️ In household appliances, such as washing machines and dishwashers, silicone rubber plugs can be used to seal against water and steam leakage.
eBay
Small Mini Metric Combination Wrench Spanner 4mm 5mm 6mm 7mm 8mm 9mm 10mm 11mm 12mm 13mm 14mm 15mm 16mm 17mm 18mm 19mm 20mm 24mm
Aliexpress UK
NBR/ Nitrile End caps are designed to fit directly in housing bores for rotary shaft lip seals. Also commonly known as a VK blanking plates seals. It's main purpose is to cap off where the shaft does not pass through the housing wall. The seal has a steel body covered with black nitrile rubber which provides an easy to install cap for blanking holes left from the manufacturing process or where the shaft does not protrude.
eBay
1-5pcs M8 304 Stainless Steel Bushing Washer Metal Gasket Round Hollow Unthreaded Standoff Spacer Sleeve OD 13mm 15mm 17mm
Aliexpress UK
▪ Practical Tools: The hole covers are intended to fill in and hide the exposed peg holes in cabinetry with adjustable peg-supported shelving. ▪ Wide Application: The button plugs are suitable for nail holes, screw holes, partition holes on cabinets, brackets, Table Chair cupboards, wardrobebooks, tables, chairs, shelves, bookcases, closets, and other furniture.
eBay
15pcs 18*15mm Zinc alloy metal Classic flower pendants for handmade accessories HW2954
Aliexpress UK
Material: Silicone. Features: corrosion resistance, acid and alkali resistance, high temperature resistance 250℃, UV resistance, aging resistance, long service life, high and low temperature resistance, etc.
eBay
1/2 3/4 BSP Female Male Thread Tee Type Reducing Stainless Steel Elbow Butt Joint Adapter Cap Plug Coupler Plumbing Fittings
Aliexpress UK
Model: Hole Plug Material: environmentally friendly food-grade silicone (silicone rubber) Shape: solid (E = 0) or open hole (size of the opening see "E" in the table) Size: 10.5mm~30mm Color: Black Product features: corrosion resistance, acid and alkali resistance, high temperature resistance of 300 degrees, UV resistance, anti-aging, long life, high and low temperature resistance. Use: It can be used for sealing of sewer pipes, and can also be used to block steel pipes and automated machinery and equipment from water and dust. It can also be used to block holes by spraying and plating paint. Note: Please measure the inner diameter of the round hole before buying, and then buy it to avoid buying the wrong size. Silicone rubber is a soft and elastic material with a good sealing type.
eBay
36 PCS RC Transmitter Switch Covers Colorful Rubber Anti-Slipping Cap for Jumper T16 T18 FrSky X9D QX7 Flysky Spektrum DX8e
Aliexpress UK