Value Collection 251349PR Oversized Dowel Pin 1/2x3 in

Product Description

The VALUE COLLECTION 251349PR is a military specification oversized dowel pin manufactured from alloy steel and designed for precision alignment and fastening applications requiring tight tolerances and high shear strength. At 0.5 inches in diameter and 3 inches in overall length, this pin meets ASME B18.8.2 standards and is hardened to 50-58 HRC for exceptional wear resistance. One end is beveled and the other is rounded, supporting clean insertion into pre-drilled bores. A licensed machinist or mechanical technician typically installs this type of pin in tooling, fixtures, and structural assemblies where standard tolerances are insufficient.

This oversized dowel pin is suited for heavy-duty industrial, military, and precision machining applications where components must be located and held within tight positional tolerances. The 0.0010-inch diameter tolerance ensures consistent fitment in oversized bore situations. Typical installation scenarios include jig and fixture assembly, machine tool alignment, and structural panel location in aerospace, defense, and industrial manufacturing environments.

Key Features

• Meets ASME B18.8.2 military specification standard for oversized dowel pins
• Alloy steel construction hardened to 50-58 HRC for high wear and shear resistance
• 51,000-pound double shear breaking strength for demanding load applications
• Diameter tolerance of 0.0010 inches for precision oversized bore fitment
• One beveled end and one rounded end for guided insertion and controlled seating
• 0.5-inch diameter by 3-inch length for versatile fixture and alignment use

Compatibility

Designed as an OEM-style replacement or direct-fit component for precision alignment applications requiring ASME B18.8.2 compliant oversized dowel pins with a 0.5-inch diameter and 3-inch length.

Installation Notes

Installation of hardened dowel pins typically requires a press fit into a properly reamed or machined bore and is performed by a machinist or mechanical technician. Ensure bore dimensions are verified against pin tolerance specifications before pressing to avoid galling or cracking the mating material. Always de-energize and lock out any machinery before servicing assemblies that contain dowel pins. Use appropriate press tooling aligned with the pin axis — never strike the pin directly with a hammer, as this can damage the pin end or distort the bore.