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

20300931-AC03 N/A HEYCO® 0.625 Inch (in) Head Diameter Rubber Grommet N/A 0.625 in15.90 mm N/A 0.250 in6.40 mm N/A 0.313 in8.00 mm
20300932-AC03 N/A HEYCO® 0.625 Inch (in) Head Diameter Rubber Grommet N/A 0.625 in15.90 mm N/A 0.250 in6.40 mm N/A 0.250 in6.40 mm
20300933-AC03 N/A HEYCO® 0.625 Inch (in) Head Diameter Rubber Grommet N/A 0.625 in15.90 mm N/A 0.250 in6.40 mm N/A 0.313 in8.00 mm
20300934-AC03 N/A HEYCO® 0.625 Inch (in) Head Diameter Rubber Grommet N/A 0.625 in15.90 mm N/A 0.250 in6.40 mm N/A 0.375 in9.50 mm
20300935-AC03 N/A HEYCO® 0.625 Inch (in) Head Diameter Rubber Grommet N/A 0.625 in15.90 mm N/A 0.313 in8.00 mm N/A 0.625 in15.90 mm
20300936-AC03 N/A HEYCO® 0.625 Inch (in) Head Diameter Rubber Grommet N/A 0.625 in15.90 mm N/A 0.375 in9.50 mm N/A 0.625 in15.90 mm
20300937-AC03 N/A HEYCO® 0.625 Inch (in) Head Diameter Rubber Grommet N/A 0.625 in15.90 mm N/A 0.375 in9.50 mm N/A 0.250 in6.40 mm
20300938-AC03 N/A HEYCO® 0.688 Inch (in) Head Diameter Rubber Grommet N/A 0.688 in17.50 mm N/A 0.375 in9.50 mm N/A 0.281 in7.10 mm
20300939-AC03 N/A HEYCO® 0.625 Inch (in) Head Diameter Rubber Grommet N/A 0.625 in15.90 mm N/A 0.375 in9.50 mm N/A 0.313 in8.00 mm
20300940-AC03 N/A HEYCO® 0.625 Inch (in) Head Diameter Rubber Grommet N/A 0.625 in15.90 mm N/A 0.375 in9.50 mm N/A 0.406 in10.30 mm
20300941-AC03 N/A HEYCO® 0.688 Inch (in) Head Diameter Rubber Grommet N/A 0.688 in17.50 mm N/A 0.375 in9.50 mm N/A 0.313 in8.00 mm
20300942-AC03 N/A HEYCO® 0.750 Inch (in) Head Diameter Rubber Grommet N/A 0.750 in19.10 mm N/A 0.375 in9.50 mm N/A 0.500 in12.70 mm
20300943-AC03 N/A HEYCO® 0.813 Inch (in) Head Diameter Rubber Grommet N/A 0.813 in20.70 mm N/A 0.313 in8.00 mm N/A 0.313 in8.00 mm
20300944-AC03 N/A HEYCO® 0.813 Inch (in) Head Diameter Rubber Grommet N/A 0.813 in20.70 mm N/A 0.313 in8.00 mm N/A 0.375 in9.50 mm
20300945-AC03 N/A HEYCO® 0.813 Inch (in) Head Diameter Rubber Grommet N/A 0.813 in20.70 mm N/A 0.313 in8.00 mm N/A 0.375 in9.50 mm
20300946-AC03 N/A HEYCO® 0.813 Inch (in) Head Diameter Rubber Grommet N/A 0.813 in20.70 mm N/A 0.313 in8.00 mm N/A 0.438 in11.10 mm
20300947-AC03 N/A HEYCO® 0.813 Inch (in) Head Diameter Rubber Grommet N/A 0.813 in20.70 mm N/A 0.313 in8.00 mm N/A 0.500 in12.70 mm
20300948-AC03 N/A HEYCO® 0.750 Inch (in) Head Diameter Rubber Grommet N/A 0.750 in19.10 mm N/A 0.375 in9.50 mm N/A 0.750 in19.10 mm
20300949-AC03 N/A HEYCO® 0.813 Inch (in) Head Diameter Rubber Grommet N/A 0.813 in20.70 mm N/A 0.375 in9.50 mm N/A 0.375 in9.50 mm
20300950-AC03 N/A HEYCO® 0.750 Inch (in) Head Diameter Rubber Grommet N/A 0.750 in19.10 mm N/A 0.438 in11.10 mm N/A 0.250 in6.40 mm
20300951-AC03 N/A HEYCO® 0.750 Inch (in) Head Diameter Rubber Grommet N/A 0.750 in19.10 mm N/A 0.188 in4.80 mm N/A 0.312 in7.90 mm
20300952-AC03 N/A HEYCO® 0.875 Inch (in) Head Diameter Rubber Grommet N/A 0.875 in22.20 mm N/A 0.375 in9.50 mm N/A 0.313 in8.00 mm
20300953-AC03 N/A HEYCO® 0.875 Inch (in) Head Diameter Rubber Grommet N/A 0.875 in22.20 mm N/A 0.375 in9.50 mm N/A 0.375 in9.50 mm
20300954-AC03 N/A HEYCO® 0.875 Inch (in) Head Diameter Rubber Grommet N/A 0.875 in22.20 mm N/A 0.375 in9.50 mm N/A 0.438 in11.10 mm
20300955-AC03 N/A HEYCO® 0.875 Inch (in) Head Diameter Rubber Grommet N/A 0.875 in22.20 mm N/A 0.375 in9.50 mm N/A 0.500 in12.70 mm
Unit of Measure
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