Value Collection 245157PS Precision Dowel Pin 1/4x1/2 in Ss 316

Product Description

The VALUE COLLECTION 245157PS is a precision dowel pin used to align, locate, and retain mating components in assemblies requiring tight positional tolerances. Manufactured from Grade 316 stainless steel with a bright, uncoated finish, this pin meets the ASME B18.8.2 fastener standard for precision dowel pins. It measures 1/4 inch in diameter with an overall length of 1/2 inch and holds a diameter tolerance of 0.0002 inches. The beveled end aids controlled insertion into drilled or reamed holes. Machinists, toolmakers, and maintenance technicians install these pins in jigs, fixtures, dies, and general mechanical assemblies where repeatable part location is required.

This dowel pin is suited for use in industrial machinery, tooling fixtures, and precision mechanical assemblies across manufacturing and maintenance environments. The Grade 316 stainless steel construction provides corrosion resistance in wet, chemical, or marine-adjacent service conditions, making it appropriate for applications where carbon steel alternatives would be unsuitable. Its compact 1/4 x 1/2 inch form factor fits standard reamed hole patterns commonly found in light-duty fixture plates and component assemblies.

Key Features

• Grade 316 stainless steel construction for corrosion resistance in demanding environments
• Meets ASME B18.8.2 precision dowel pin standard
• Diameter tolerance of 0.0002 inches for precise alignment and repeatable location
• Beveled end design for controlled, damage-free insertion
• Bright, uncoated finish with no coating buildup to affect tolerance stack-up
• Weighs 0.01 pounds per unit — lightweight for high-volume fixture builds

Compatibility

Designed for use in standard 1/4 inch reamed holes in jigs, fixtures, dies, and precision mechanical assemblies conforming to ASME B18.8.2 dowel pin specifications.

Installation Notes

Precision dowel pins are typically pressed or driven into reamed holes by machinists or maintenance mechanics using an arbor press or a soft-faced mallet. The receiving hole should be reamed to the appropriate tolerance class for the intended fit — clearance, transition, or interference — before installation. Always clean and deburr the hole prior to insertion to avoid galling the pin surface. Do not install with a steel hammer directly on the pin end, as this can damage the precision finish and affect the fit.