EFC International
EFC International
1940 Craigshire St. Louis,
MO 63146-4008
Phone: 1 314.434.28881
Contact: www.efc-intl.com/contact
Website: www.efc-intl.com
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These Rubber Grommets are used to protect or cover through holes. There are 160 sizes available that will accommodate mounting holes ranging from 0.250 in - 2.50 in (6.4 mm - 63.5 mm) diameter and panel thickness ranging from 0.063 in - 0.375 in (1.6 mm - 9.5 mm).
HEYCO® Rubber Grommets
Unit of Measure
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Item #

Item Name

Head Diameter

Inside Diameter

Overall Height

20300956-AC03 N/A HEYCO® 0.813 Inch (in) Head Diameter Rubber Grommet N/A 0.813 in20.70 mm N/A 0.406 in10.30 mm N/A 0.625 in15.90 mm
20300957-AC03 N/A HEYCO® 1.100 Inch (in) Head Diameter Rubber Grommet N/A 1.100 in27.90 mm N/A 0.400 in10.20 mm N/A 0.435 in11.10 mm
20300958-AC03 N/A HEYCO® 0.813 Inch (in) Head Diameter Rubber Grommet N/A 0.813 in20.70 mm N/A 0.500 in12.70 mm N/A 0.281 in7.10 mm
20300959-AC03 N/A HEYCO® 0.875 Inch (in) Head Diameter Rubber Grommet N/A 0.875 in22.20 mm N/A 0.188 in4.80 mm N/A 0.250 in6.40 mm
20300960-AC03 N/A HEYCO® 0.810 Inch (in) Head Diameter Rubber Grommet N/A 0.810 in20.60 mm N/A 0.500 in12.70 mm N/A 0.300 in7.60 mm
20300961-AC03 N/A HEYCO® 0.938 Inch (in) Head Diameter Rubber Grommet N/A 0.938 in23.80 mm N/A 0.438 in11.80 mm N/A 0.313 in8.00 mm
20300962-AC03 N/A HEYCO® 0.938 Inch (in) Head Diameter Rubber Grommet N/A 0.938 in23.80 mm N/A 0.438 in11.10 mm N/A 0.348 in8.80 mm
20300963-AC03 N/A HEYCO® 0.938 Inch (in) Head Diameter Rubber Grommet N/A 0.938 in23.80 mm N/A 0.438 in11.10 mm N/A 0.375 in9.50 mm
20300964-AC03 N/A HEYCO® 0.938 Inch (in) Head Diameter Rubber Grommet N/A 0.938 in23.80 mm N/A 0.438 in11.10 mm N/A 0.438 in11.10 mm
20300965-AC03 N/A HEYCO® 0.938 Inch (in) Head Diameter Rubber Grommet N/A 0.938 in23.80 mm N/A 0.438 in11.10 mm N/A 0.500 in12.70 mm
20300966-AC03 N/A HEYCO® 0.875 Inch (in) Head Diameter Rubber Grommet N/A 0.875 in22.20 mm N/A 0.500 in12.70 mm N/A 0.250 in6.40 mm
20300967-AC03 N/A HEYCO® 1.000 Inch (in) Head Diameter Rubber Grommet N/A 1.000 in25.40 mm N/A 0.313 in8.00 mm N/A 0.438 in11.10 mm
20300968-AC03 N/A HEYCO® 1.000 Inch (in) Head Diameter Rubber Grommet N/A 1.000 in25.40 mm N/A 0.500 in12.70 mm N/A 0.625 in15.90 mm
20300969-AC03 N/A HEYCO® 1.000 Inch (in) Head Diameter Rubber Grommet N/A 1.000 in25.40 mm N/A 0.500 in12.70 mm N/A 0.250 in6.40 mm
20300970-AC03 N/A HEYCO® 0.875 Inch (in) Head Diameter Rubber Grommet N/A 0.875 in22.20 mm N/A 0.500 in12.70 mm N/A 0.344 in8.70 mm
20300971-AC03 N/A HEYCO® 0.969 Inch (in) Head Diameter Rubber Grommet N/A 0.969 in24.60 mm N/A 0.500 in12.70 mm N/A 0.281 in7.10 mm
20300972-AC03 N/A HEYCO® 0.938 Inch (in) Head Diameter Rubber Grommet N/A 0.938 in23.80 mm N/A 0.500 in12.70 mm N/A 0.406 in10.30 mm
20300973-AC03 N/A HEYCO® 1.063 Inch (in) Head Diameter Rubber Grommet N/A 1.063 in27.00 mm N/A 0.438 in11.10 mm N/A 0.625 in15.90 mm
20300974-AC03 N/A HEYCO® 1.063 Inch (in) Head Diameter Rubber Grommet N/A 1.063 in27.00 mm N/A 0.500 in12.70 mm N/A 0.313 in8.00 mm
20300975-AC03 N/A HEYCO® 1.063 Inch (in) Head Diameter Rubber Grommet N/A 1.063 in27.00 mm N/A 0.500 in12.70 mm N/A 0.375 in9.50 mm
20300976-AC03 N/A HEYCO® 1.063 Inch (in) Head Diameter Rubber Grommet N/A 1.063 in27.00 mm N/A 0.500 in12.70 mm N/A 0.438 in11.10 mm
20300977-AC03 N/A HEYCO® 1.063 Inch (in) Head Diameter Rubber Grommet N/A 1.063 in27.00 mm N/A 0.500 in12.70 mm N/A 0.500 in12.70 mm
20300978-AC03 N/A HEYCO® 1.063 Inch (in) Head Diameter Rubber Grommet N/A 1.063 in27.00 mm N/A 0.563 in14.30 mm N/A 0.313 in8.00 mm
20300979-AC03 N/A HEYCO® 1.062 Inch (in) Head Diameter Rubber Grommet N/A 1.062 in26.90 mm N/A 0.563 in14.30 mm N/A 0.375 in9.50 mm
20300980-AC03 N/A HEYCO® 1.063 Inch (in) Head Diameter Rubber Grommet N/A 1.063 in27.00 mm N/A 0.563 in14.30 mm N/A 0.438 in11.10 mm
Unit of Measure
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