HEYCO® Heat Stabilized Nylon Dome Hole Plugs are molded from a Halogen-free, non-toxic nylon material which will not burn or produce toxic gases in the event of a fire. They are UV resistant, and self-extinguishing. Their convex, matte finish head tapers to a thin edge, and they are used to close unneeded panel holes.
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Item #

Item Name

Mounting Hole Diameter

Head Diameter

Maximum Panel Size

70004193 N/A HEYCO® 1.015 Inch (in) Head Diameter Heat Stabilized Nylon Dome Hole Plug N/A 0.875 in22.20 mm N/A 1.015 in25.80 mm N/A 0.125 in3.20 mm
20300025-A03I N/A HEYCO® 1.203 Inch (in) Head Diameter Heat Stabilized Nylon Dome Hole Plug N/A 1.000 in25.40 mm N/A 1.203 in30.60 mm N/A 0.125 in3.20 mm
20300066-A03I N/A HEYCO® 0.921 Inch (in) Head Diameter Heat Stabilized Nylon Dome Hole Plug N/A 0.750 in19.10 mm N/A 0.921 in23.40 mm N/A 0.125 in3.20 mm
20300199-F030 N/A HEYCO® 0.265 Inch (in) Head Diameter Heat Stabilized Nylon Dome Hole Plug N/A 0.187 in4.75 mm N/A 0.265 in6.70 mm N/A 0.062 in1.60 mm
20300200-F030 N/A HEYCO® 0.468 Inch (in) Head Diameter Heat Stabilized Nylon Dome Hole Plug N/A 0.375 in9.50 mm N/A 0.468 in11.90 mm N/A 0.125 in3.20 mm
20300412-XF03 N/A HEYCO® 1.375 Inch (in) Head Diameter Heat Stabilized Nylon Dome Hole Plug N/A 1.250 in31.70 mm N/A 1.375 in34.90 mm N/A 0.125 in3.20 mm
20300413-XF03 N/A HEYCO® 1.500 Inch (in) Head Diameter Heat Stabilized Nylon Dome Hole Plug N/A 1.375 in34.90 mm N/A 1.500 in38.10 mm N/A 0.125 in3.20 mm
20300414-XF03 N/A HEYCO® 1.671 Inch (in) Head Diameter Heat Stabilized Nylon Dome Hole Plug N/A 1.500 in38.10 mm N/A 1.671 in42.40 mm N/A 0.125 in3.20 mm
20300416-XF03 N/A HEYCO® 2.170 Inch (in) Head Diameter Heat Stabilized Nylon Dome Hole Plug N/A 2.000 in50.80 mm N/A 2.170 in55.10 mm N/A 0.125 in3.20 mm
20615062-A030I N/A HEYCO® 0.531 Inch (in) Head Diameter Heat Stabilized Nylon Dome Hole Plug N/A 0.437 in11.10 mm N/A 0.531 in13.50 mm N/A 0.125 in3.20 mm
20827002-A030I N/A HEYCO® 0.312 Inch (in) Head Diameter Heat Stabilized Nylon Dome Hole Plug N/A 0.250 in6.40 mm N/A 0.312 in7.90 mm N/A 0.062 in1.60 mm
20827003-A030I N/A HEYCO® 0.375 Inch (in) Head Diameter Heat Stabilized Nylon Dome Hole Plug N/A 0.312 in7.90 mm N/A 0.375 in9.50 mm N/A 0.062 in1.60 mm
20827006-A030I N/A HEYCO® 0.570 Inch (in) Head Diameter Heat Stabilized Nylon Dome Hole Plug N/A 0.500 in12.70 mm N/A 0.570 in14.50 mm N/A 0.125 in3.20 mm
20827008-A030I N/A HEYCO® 0.734 Inch (in) Head Diameter Heat Stabilized Nylon Dome Hole Plug N/A 0.625 in15.90 mm N/A 0.734 in18.60 mm N/A 0.125 in3.20 mm
20827014-A030I N/A HEYCO® 1.218 Inch (in) Head Diameter Heat Stabilized Nylon Dome Hole Plug N/A 1.109 in28.2 mm N/A 1.218 in30.90 mm N/A 0.125 in3.20 mm
20900040-99I N/A HEYCO® 1.906 Inch (in) Head Diameter Heat Stabilized Nylon Dome Hole Plug N/A 1.750 in44.50 mm N/A 1.906 in48.40 mm N/A 0.125 in3.20 mm
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