Jergens 31413 Flat Vent Pull Out Dowel Pin 5/16 X 2 in

Product Description

The JERGENS 31413 is a flat vent pull out dowel pin used to locate, align, and retain mating components in precision assemblies. Machined from C-1215 alloy steel to ASME B18.8.2 standards, this threaded-end pin delivers close-tolerance positioning with a diameter tolerance of -0.0001 to 0.0001 inches. The flat vent groove allows air and coolant to escape during press-fit installation, preventing hydraulic lock in blind holes. The threaded end provides a positive pull-out point for removal without damage to the bore or surrounding material. Machinists, tool and die makers, and maintenance technicians install this pin in jigs, fixtures, dies, and production tooling.

This dowel pin is suited for industrial and manufacturing applications where repeatable alignment and positive removal are required. The threaded pull-out design is especially practical in deep or blind-hole installations where a standard press-fit pin would be difficult to extract. Typical applications include fixture plates, die sets, machine bases, and assembly tooling in both job shop and production environments.

Key Features

• Flat vent groove prevents hydraulic lock in blind-hole installations
• Threaded end allows controlled pull-out without bore damage
• C-1215 alloy steel construction for strength and machinability
• Diameter tolerance of -0.0001 to 0.0001 inches for precision fitment
• Manufactured to ASME B18.8.2 fastener standard

Compatibility

Designed as an OEM-style replacement or new-installation dowel pin for precision fixtures, dies, and tooling assemblies requiring a 5/16-inch nominal diameter flat vent pull-out style pin conforming to ASME B18.8.2.

Installation Notes

Installation is typically performed by machinists or tool and die technicians using a press or mallet with an appropriate driver. Ensure the receiving bore is clean, dimensionally correct, and free of burrs before pressing the pin. Power down and lock out any machine or fixture before servicing dowel pin locations. The threaded end should be engaged with the correct extraction tool or threaded puller rod for removal to avoid bore distortion.