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SPIROL Updates GD100 Ground Hollow Dowel Specifications

SPIROL recently updated their GD100 Ground Hollow Dowel data sheet to include more specificity in regards to the hole size. Whereas the previous version listed only a "Recommended Hole Size", the updated specifications now include a recommendation for the "Interference Fit" hole (for the primary retention of the Dowel) and "Transitional Fit” hole (for the mating component).

SPIROL introduced the GD100 Ground Hollow Dowels to the fastener industry as a direct replacement for Ground Solid Dowels per ISO 8734 for applications where centerline tolerancing and precision alignment is required. The roll formed design yields substantial cost savings, and the hollow feature offers weight savings over Solid Dowels with clearance for bolts, fluids and gases.

Download the updated specifications for the GD100 Ground Hollow Dowels.

SPIROL offers a variety of Alignment Dowels & Bushings to accommodate different alignment requirements and cost considerations. In addition to the GD100 Ground Hollow Dowels, SPIROL offers two different split seam components for aligning:


For more information on Ground Hollow Dowels, Dowel Bushings and Spring Dowels, please visit SPIROL.com 

Complimentary Applications Engineering Support: SPIROL Engineers will review your application requirements and work with your design team to recommend the best solution at the lowest total assembly cost. It all starts with our Optimal Application Engineering process. To start, please select Alignment Applications under the Optimal Application Engineering portal on the left hand side of this page, or contact the Sales department at any one of SPIROL’s global locations.


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SPIROL INTERNATIONAL CORPORATION is a leading manufacturer of a diverse line of engineered components for fastening and joining, including Coiled Spring Pins, Slotted Spring Pins, Solid Pins, Disc Springs, Alignment Dowels and Bushings, Spacers, Compression Limiters, Threaded Inserts for Plastics, Precision Shims, Installation and Feeding Equipment. SPIROL can be found on 4 continents within the following 12 countries: Brazil, Canada, China, Czech Republic, England, France, Germany, Mexico, Poland, South Korea, Spain, and the United States. Since 1948, SPIROL has been providing technical expertise in fastening, joining and assembly to the world's leading manufacturers.

Involve SPIROL Engineering early in the design stage of your next project!