Value Collection 261328PR Dowel Pin 0.5x1.25 in Alloy Steel Gr8

Product Description

The VALUE COLLECTION 261328PR is a standard pull out dowel pin used for precise alignment and location of mating components in mechanical assemblies. Machined from Grade 8 alloy steel, this pin meets ASME B18.8.2 dimensional standards and holds a diameter tolerance of 0.0002 inches, making it suitable for close-tolerance fit applications. One end is rounded for easy insertion into a reamed hole, and the opposite end is threaded to accept a pull-out tool for controlled removal. Machinists, toolmakers, and maintenance technicians install these pins in fixtures, jigs, machine tools, and production equipment where repeatable positioning is required.

This dowel pin is intended for use in applications where the pin must be removable from a blind hole or a through-hole that is not accessible from the opposite side. The threaded pull-out end allows a threaded puller or slide hammer attachment to extract the pin without damaging the bore. Typical installations include fixture plates, die sets, machine bases, and precision tooling assemblies in manufacturing and industrial maintenance environments.

Key Features

• Grade 8 alloy steel construction for high strength and hardness
• Diameter tolerance of 0.0002 inches for close-tolerance alignment fits
• One rounded end for smooth insertion into reamed holes
• One threaded end for pull-out tool engagement, enabling removal from blind holes
• Meets ASME B18.8.2 fastener standard for dimensional compliance

Compatibility

Designed as a standard-dimension pull out dowel pin per ASME B18.8.2, suitable for any fixture, jig, die set, or machine assembly that calls for a 0.5-inch diameter pull out dowel pin with a 1.25-inch overall length.

Installation Notes

Installation is performed by machinists or maintenance technicians using a press or mallet to seat the pin into a precision-reamed hole. The receiving bore should be reamed to the appropriate tolerance class to match the pin fit before installation. Always de-energize and lock out any machine before installing or removing dowel pins. Use a threaded puller that matches the threaded end specification to remove the pin without damaging the bore or the pin threads.