• HEYCO® Standard Nylon Dome Type Hole Plugs
HEYCO® Standard Nylon Dome Type Hole Plugsclose unneeded chassis holes. Their convex matte finish head tapers to a thin edge. They are available in 29 sizes for use in 3/16" - 6" (4.70mm - 152.40mm) diameter holes.
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Item #

Item Name

Overall Height

Maximum Mounting Hole Size

Head Outside Diameter

N/A HEYCO® 15.90 Millimeter (mm) Maximum Mounting Hole Diameter White Standard Nylon Dome Type Hole Plug N/A 0.406 in10.30 mm N/A 0.625 in15.90 mm N/A 0.718 in18.20 mm
N/A HEYCO® 17.40 Millimeter (mm) Maximum Mounting Hole Diameter Black Standard Nylon Dome Type Hole Plug N/A 0.406 in10.30 mm N/A 0.687 in17.40 mm N/A 0.781 in19.80 mm
N/A HEYCO® 17.40 Millimeter (mm) Maximum Mounting Hole Diameter White Standard Nylon Dome Type Hole Plug N/A 0.406 in10.30 mm N/A 0.687 in17.40 mm N/A 0.781 in19.80 mm
N/A HEYCO® 19.10 Millimeter (mm) Maximum Mounting Hole Diameter Black Standard Nylon Dome Type Hole Plug N/A 0.406 in10.30 mm N/A 0.750 in19.10 mm N/A 0.921 in23.40 mm
N/A HEYCO® 19.10 Millimeter (mm) Maximum Mounting Hole Diameter White Standard Nylon Dome Type Hole Plug N/A 0.406 in10.30 mm N/A 0.750 in19.10 mm N/A 0.921 in23.40 mm
N/A HEYCO® 20.60 Millimeter (mm) Maximum Mounting Hole Diameter Black Standard Nylon Dome Type Hole Plug N/A 0.406 in10.30 mm N/A 0.812 in20.60 mm N/A 0.890 in22.60 mm
N/A HEYCO® 20.60 Millimeter (mm) Maximum Mounting Hole Diameter White Standard Nylon Dome Type Hole Plug N/A 0.406 in10.30 mm N/A 0.812 in20.60 mm N/A 0.890 in22.60 mm
N/A HEYCO® 22.20 Millimeter (mm) Maximum Mounting Hole Diameter White Standard Nylon Dome Type Hole Plug N/A 0.453 in11.50 mm N/A 0.875 in22.20 mm N/A 1.015 in25.80 mm
N/A HEYCO® 25.40 Millimeter (mm) Maximum Mounting Hole Diameter Black Standard Nylon Dome Type Hole Plug N/A 0.453 in11.50 mm N/A 1.000 in25.40 mm N/A 1.203 in30.60 mm
N/A HEYCO® 28.60 Millimeter (mm) Maximum Mounting Hole Diameter Black Standard Nylon Dome Type Hole Plug N/A 0.453 in11.50 mm N/A 1.093 in28.60 mm N/A 1.218 in30.90 mm
N/A HEYCO® 28.60 Millimeter (mm) Maximum Mounting Hole Diameter White Standard Nylon Dome Type Hole Plug N/A 0.453 in11.50 mm N/A 1.093 in28.60 mm N/A 1.218 in30.90 mm
N/A HEYCO® 30.10 Millimeter (mm) Maximum Mounting Hole Diameter Black Standard Nylon Dome Type Hole Plug N/A 0.453 in11.50 mm N/A 1.187 in30.10 mm N/A 1.312 in33.30 mm
N/A HEYCO® 30.10 Millimeter (mm) Maximum Mounting Hole Diameter White Standard Nylon Dome Type Hole Plug N/A 0.453 in11.50 mm N/A 1.187 in30.10 mm N/A 1.312 in33.30 mm
N/A HEYCO® 31.70 Millimeter (mm) Maximum Mounting Hole Diameter Black Standard Nylon Dome Type Hole Plug N/A 0.453 in11.50 mm N/A 1.250 in31.70 mm N/A 1.375 in34.90 mm
N/A HEYCO® 31.70 Millimeter (mm) Maximum Mounting Hole Diameter White Standard Nylon Dome Type Hole Plug N/A 0.453 in11.50 mm N/A 1.250 in31.70 mm N/A 1.375 in34.90 mm
N/A HEYCO® 34.90 Millimeter (mm) Maximum Mounting Hole Diameter White Standard Nylon Dome Type Hole Plug N/A 0.453 in11.50 mm N/A 1.375 in34.90 mm N/A 1.500 in38.10 mm
N/A HEYCO® 34.90 Millimeter (mm) Maximum Mounting Hole Diameter Black Standard Nylon Dome Type Hole Plug N/A 0.453 in11.50 mm N/A 1.375 in34.90 mm N/A 1.500 in38.10 mm
N/A HEYCO® 38.10 Millimeter (mm) Maximum Mounting Hole Diameter Black Standard Nylon Dome Type Hole Plug N/A 0.453 in11.50 mm N/A 1.500 in38.10 mm N/A 1.671 in42.40 mm
N/A HEYCO® 38.10 Millimeter (mm) Maximum Mounting Hole Diameter White Standard Nylon Dome Type Hole Plug N/A 0.453 in11.50 mm N/A 1.500 in38.10 mm N/A 1.671 in42.40 mm
N/A HEYCO® 44.50 Millimeter (mm) Maximum Mounting Hole Diameter Black Standard Nylon Dome Type Hole Plug N/A 0.453 in11.50 mm N/A 1.750 in44.50 mm N/A 1.916 in48.70 mm
N/A HEYCO® 44.50 Millimeter (mm) Maximum Mounting Hole Diameter White Standard Nylon Dome Type Hole Plug N/A 0.453 in11.50 mm N/A 1.750 in44.50 mm N/A 1.916 in48.70 mm
N/A HEYCO® 50.80 Millimeter (mm) Maximum Mounting Hole Diameter Black Standard Nylon Dome Type Hole Plug N/A 0.469 in11.90 mm N/A 2.000 in50.80 mm N/A 2.170 in55.10 mm
N/A HEYCO® 50.80 Millimeter (mm) Maximum Mounting Hole Diameter White Standard Nylon Dome Type Hole Plug N/A 0.469 in11.90 mm N/A 2.000 in50.80 mm N/A 2.170 in55.10 mm
N/A HEYCO® 63.50 Millimeter (mm) Maximum Mounting Hole Diameter Black Standard Nylon Dome Type Hole Plug N/A 7.50 in19.10 mm N/A 2.500 in63.50 mm N/A 2.730 in69.50 mm
N/A HEYCO® 76.20 Millimeter (mm) Maximum Mounting Hole Diameter Black Standard Nylon Dome Type Hole Plug N/A 7.50 in19.10 mm N/A 3.000 in76.20 mm N/A 3.171 in80.50 mm
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