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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Spirol® Dowel Bushings provide precision alignment of mating components and shear-load protection for the bolt when installation guidelines are followed. Their hollow design permits a fastening screw or bolt to pass through the controlled inside diameter into a threaded component, isolating the bolt from shear loading and increasing joint integrity without the need for separate bolt holes. They have lead-in beveled chamfers to ease insertion and prevent skiving of the bushing during installation.
Spirol® Dowel Bushings
Unit of Measure
1 2 

Item #

Item Name

Maximum Outside Diameter

Length

Nominal Bolt Diameter (Decimal)

Nominal Bolt Diameter

E10S08380001 N/A Spirol® 6.86 Millimeter (mm) Maximum Outside Diameter Dowel Bushing N/A 6.86 mm N/A 10.00 mm N/A 5.00 mm N/A
E10S08380002 N/A Spirol® 6.86 Millimeter (mm) Maximum Outside Diameter Dowel Bushing N/A 6.86 mm N/A 12.00 mm N/A 5.00 mm N/A
E10S08380003 N/A Spirol® 6.86 Millimeter (mm) Maximum Outside Diameter Dowel Bushing N/A 6.86 mm N/A 20.00 mm N/A 5.00 mm N/A
E10S08380004 N/A Spirol® 6.86 Millimeter (mm) Maximum Outside Diameter Dowel Bushing N/A 6.86 mm N/A 25.00 mm N/A 5.00 mm N/A
E10S08380005 N/A Spirol® 8.18 Millimeter (mm) Maximum Outside Diameter Dowel Bushing N/A 8.18 mm N/A 12.00 mm N/A 6.00 mm N/A
E10S08380006 N/A Spirol® 8.18 Millimeter (mm) Maximum Outside Diameter Dowel Bushing N/A 8.18 mm N/A 20.00 mm N/A 6.00 mm N/A
E10S08380007 N/A Spirol® 8.18 Millimeter (mm) Maximum Outside Diameter Dowel Bushing N/A 8.18 mm N/A 25.00 mm N/A 6.00 mm N/A
E10S08380008 N/A Spirol® 8.18 Millimeter (mm) Maximum Outside Diameter Dowel Bushing N/A 8.18 mm N/A 30.00 mm N/A 6.00 mm N/A
E10S08380009 N/A Spirol® 10.44 Millimeter (mm) Maximum Outside Diameter Dowel Bushing N/A 10.44 mm N/A 12.00 mm N/A 8.00 mm N/A
E10S08380010 N/A Spirol® 10.44 Millimeter (mm) Maximum Outside Diameter Dowel Bushing N/A 10.44 mm N/A 20.00 mm N/A 8.00 mm N/A
E10S08380011 N/A Spirol® 10.44 Millimeter (mm) Maximum Outside Diameter Dowel Bushing N/A 10.44 mm N/A 25.00 mm N/A 8.00 mm N/A
E10S08380012 N/A Spirol® 10.44 Millimeter (mm) Maximum Outside Diameter Dowel Bushing N/A 10.44 mm N/A 30.00 mm N/A 8.00 mm N/A
E10S08380013 N/A Spirol® 10.44 Millimeter (mm) Maximum Outside Diameter Dowel Bushing N/A 10.44 mm N/A 35.00 mm N/A 8.00 mm N/A
E10S08380014 N/A Spirol® 13.01 Millimeter (mm) Maximum Outside Diameter Dowel Bushing N/A 13.01 mm N/A 20.00 mm N/A 10.00 mm N/A
E10S08380015 N/A Spirol® 13.01 Millimeter (mm) Maximum Outside Diameter Dowel Bushing N/A 13.01 mm N/A 25.00 mm N/A 10.00 mm N/A
E10S08380016 N/A Spirol® 13.01 Millimeter (mm) Maximum Outside Diameter Dowel Bushing N/A 13.01 mm N/A 30.00 mm N/A 10.00 mm N/A
E10S08380017 N/A Spirol® 13.01 Millimeter (mm) Maximum Outside Diameter Dowel Bushing N/A 13.01 mm N/A 35.00 mm N/A 10.00 mm N/A
E10S08380018 N/A Spirol® 15.60 Millimeter (mm) Maximum Outside Diameter Dowel Bushing N/A 15.60 mm N/A 25.00 mm N/A 12.00 mm N/A
E10S08380019 N/A Spirol® 15.60 Millimeter (mm) Maximum Outside Diameter Dowel Bushing N/A 15.60 mm N/A 30.00 mm N/A 12.00 mm N/A
E10S08380020 N/A Spirol® 15.60 Millimeter (mm) Maximum Outside Diameter Dowel Bushing N/A 15.60 mm N/A 35.00 mm N/A 12.00 mm N/A
E10S08380021 N/A Spirol® 17.90 Millimeter (mm) Maximum Outside Diameter Dowel Bushing N/A 17.90 mm N/A 30.00 mm N/A 14.00 mm N/A
E10S08380022 N/A Spirol® 17.90 Millimeter (mm) Maximum Outside Diameter Dowel Bushing N/A 17.90 mm N/A 35.00 mm N/A 14.00 mm N/A
E10S08380023 N/A Spirol® 20.35 Millimeter (mm) Maximum Outside Diameter Dowel Bushing N/A 20.35 mm N/A 30.00 mm N/A 16.00 mm N/A
E10S08380024 N/A Spirol® 0.270 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.270 in N/A N/A N/A #10
E10S08380025 N/A Spirol® 0.270 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.270 in N/A N/A N/A #10
Unit of Measure
1 2