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

Sort by
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
E10S08380026 N/A Spirol® 0.270 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.270 in N/A N/A N/A #10
E10S08380028 N/A Spirol® 0.333 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.333 in N/A N/A 0.25 in N/A
E10S08380029 N/A Spirol® 0.333 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.333 in N/A N/A 0.25 in N/A
E10S08380032 N/A Spirol® 0.411 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.411 in N/A N/A 0.312 in N/A
E10S08380033 N/A Spirol® 0.411 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.411 in N/A N/A 0.312 in N/A
E10S08380037 N/A Spirol® 0.489 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.489 in N/A N/A 0.375 in N/A
E10S08380047 N/A Spirol® 0.801 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.801 in N/A N/A 0.625 in N/A
E10S08380027 N/A Spirol® 0.270 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.270 in N/A 1.000 mm N/A N/A #10
E10S08380030 N/A Spirol® 0.333 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.333 in N/A 1.000 mm N/A 0.25 in N/A
E10S08380034 N/A Spirol® 0.411 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.411 in N/A 1.000 mm N/A 0.312 in N/A
E10S08380038 N/A Spirol® 0.489 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.489 in N/A 1.000 mm N/A 0.375 in N/A
E10S08380041 N/A Spirol® 0.645 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.645 in N/A 1.000 mm N/A 0.500 in N/A
E10S08380031 N/A Spirol® 0.333 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.333 in N/A 1.250 mm N/A 0.25 in N/A
E10S08380035 N/A Spirol® 0.411 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.411 in N/A 1.250 mm N/A 0.312 in N/A
E10S08380039 N/A Spirol® 0.489 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.489 in N/A 1.250 mm N/A 0.375 in N/A
E10S08380042 N/A Spirol® 0.645 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.645 in N/A 1.250 mm N/A 0.500 in N/A
E10S08380045 N/A Spirol® 0.801 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.801 in N/A 1.250 mm N/A 0.625 in N/A
E10S08380048 N/A Spirol® 0.952 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.952 in N/A 1.250 mm N/A 0.750 in N/A
E10S08380036 N/A Spirol® 0.411 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.411 in N/A 1.500 mm N/A 0.312 in N/A
E10S08380040 N/A Spirol® 0.489 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.489 in N/A 1.500 mm N/A 0.375 in N/A
E10S08380043 N/A Spirol® 0.645 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.645 in N/A 1.500 mm N/A 0.500 in N/A
E10S08380046 N/A Spirol® 0.801 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.801 in N/A 1.500 mm N/A 0.625 in N/A
E10S08380049 N/A Spirol® 0.952 Inch (in) Maximum Outside Diameter Dowel Bushing N/A 0.952 in N/A 1.500 mm N/A 0.750 in N/A
Unit of Measure
1 2