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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.
Unit of Measure

Specifications

Brands

 N/A Spirol®

Finish

 N/A Oiled Phosphate Plain Oiled Zinc plated

Maximum Outside Diameter

 N/A 15.60 mm

Minimum Outside Diameter

 N/A 15.34 mm

Length

 N/A 25.00 mm

Material

 N/A Steel

Nominal Bolt Diameter (Decimal)

 N/A 12.00 mm

Minimum Single Shear Strength

 N/A 46.50 kN

Maximum Hole Tolerance (±)

 N/A 15.22 mm

Minimum Hole Tolerance (±)

 N/A 15.09 mm

Wall Thickness

 N/A 1.45 mm

Features and Benefits

Features and Benefits

 N/A
  • Staggered Seams - Prevent interlocking & eliminate the need to separate them during manual assembly
  • Automated Assembly - Can be used with automatic feeding
  • Chamfered Ends - Facilitate Installation
  • Cost Savings - Eliminate the need for a 2nd bolt hole or precision hole
  • Bolt Protection - From shear loads perpendicular to the bolt
  • Specifications Are based on standard bolt sizes.
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