Value Collection 251286PR Oversized Dowel Pin 3/8x3in

Product Description

The VALUE COLLECTION 251286PR is a military specification oversized dowel pin designed for precision alignment and fastening applications in metal fabrication, tooling, and mechanical assembly. Made from alloy steel with a hardness of 50-58 HRC, this pin delivers strong resistance to shear forces and wear. It measures 3/8 inch in diameter and 3 inches in overall length, with a diameter tolerance of 0.0010 decimal inch for accurate press-fit or slip-fit applications. End configuration is one beveled end and one rounded end, which aids in guided insertion during assembly. Machinists, toolmakers, and mechanical technicians are the primary installers of this type of fastener.

This dowel pin is suited for use in jigs, fixtures, dies, and machine tool assemblies where tight positional tolerances are required. The oversized classification means the pin diameter is intentionally manufactured above nominal for use in reamed or worn holes that require restoration to a controlled fit. It conforms to ASME B18.8.2, making it appropriate for applications where a recognized dimensional standard is required. Typical use cases include manufacturing floor tooling, press tool alignment, and industrial maintenance repair work.

Key Features

• Military specification oversized design for use in reamed or tolerance-restored holes
• Alloy steel construction with 50-58 HRC hardness for high wear and shear resistance
• Breaking strength of 28,700 in double shear measurement
• Diameter tolerance of 0.0010 decimal inch for controlled fit precision
• One beveled end and one rounded end for guided installation
• Conforms to ASME B18.8.2 fastener standard

Compatibility

Designed as an ASME B18.8.2 military specification oversized dowel pin for use in precision tooling, jig, and fixture applications requiring a controlled oversize fit in reamed holes.

Installation Notes

Installation is typically performed by machinists or mechanical technicians using a press or mallet with an appropriate driver to avoid damaging the pin ends. Always ensure the receiving hole is properly reamed to the correct oversize diameter before installation to avoid galling or seizing. De-burr and clean all mating surfaces before pressing the pin into position. Follow applicable shop safety procedures and engineering specifications for hole-to-pin fit class during assembly.