Value Collection 251328PR Oversized Dowel Pin 1/2x1-1/4 in

Product Description

The VALUE COLLECTION 251328PR is a military specification oversized dowel pin manufactured from alloy steel for use in precision alignment and fastening applications. The pin measures 0.5 inches in diameter and 1.25 inches in overall length, with one beveled end and one rounded end to ease installation and reduce the risk of hole damage during press fitting. Hardness is rated at 50-58 HRC, providing strong resistance to deformation under load. Breaking strength is 51,000 pounds in double shear. The pin meets ASME B18.8.2 standards and is appropriate for machinists, millwrights, and maintenance technicians working in precision assembly environments.

This oversized dowel pin is suited for applications where standard tolerances are insufficient or where a worn bore requires a slightly larger pin for a proper fit. Common uses include tooling fixtures, machine frames, jigs, and structural alignment in both industrial and defense-related equipment. The oversized diameter tolerance of 0.0010 decimal inch makes this pin appropriate for tight-tolerance press-fit and slip-fit applications in ferrous and non-ferrous assemblies. It is typically specified in repair and rebuild scenarios where a standard-diameter pin would not provide adequate retention.

Key Features

• Military specification oversized pin per ASME B18.8.2
• Alloy steel construction with 50-58 HRC hardness for wear and shear resistance
• 51,000 lb breaking strength measured in double shear
• One beveled end and one rounded end for controlled press-fit installation
• Diameter tolerance of 0.0010 decimal inch for precision fitment
• Lightweight at 0.01 pounds per pin, suitable for weight-sensitive assemblies

Compatibility

Designed as an OEM-style replacement or repair-grade oversized dowel pin for precision alignment applications conforming to ASME B18.8.2 specifications.

Installation Notes

Installation of dowel pins should be performed by a qualified machinist or maintenance technician using a press or appropriate driving tool — never use impact tools, which can crack or distort the pin or bore. Verify bore diameter and surface finish before installation to ensure the correct interference or transition fit. Press the pin squarely to avoid galling or binding. Follow applicable facility safety procedures and equipment lockout/tagout protocols before performing any alignment or assembly work.