Jergens 31427 Flat Vent Pull Out Dowel Pin 7/16 X 2 in

Product Description

The JERGENS 31427 is a flat vent pull out dowel pin manufactured from C-1215 alloy steel and built to ASME B18.8.2 standards. It measures 7/16 inch in diameter and 2 inches in overall length, with a threaded end for extraction after alignment or assembly operations. The flat vent design allows air and fluid to escape during press fitting, reducing hydraulic lock in blind holes. Machinists, toolmakers, and precision assembly technicians install this pin in jigs, fixtures, dies, and production tooling where accurate, repeatable part location is required.

This dowel pin is suited for use in machine shops, tool rooms, and precision manufacturing environments. The threaded end allows the pin to be pulled out without damage to the mating component, making it ideal for setups where the pin must be removed and reinstalled during production cycles or tooling changes. It is commonly used in fixture plates, mold bases, and die sets requiring close-tolerance alignment.

Key Features

• Flat vent design allows air and fluid relief during press-fit installation, preventing hydraulic lock in blind holes
• Threaded end enables clean removal without damage to surrounding material
• C-1215 alloy steel construction provides good machinability and surface finish compatibility
• Manufactured to ASME B18.8.2 standard for consistent dimensional accuracy
• Tight diameter tolerance of -0.0001 to 0.0001 inches ensures precise hole alignment

Compatibility

Designed as an OEM-style replacement or direct-fit component for standard 7/16-inch dowel pin applications conforming to ASME B18.8.2 specifications in jigs, fixtures, and precision tooling assemblies.

Installation Notes

Installation is typically performed by machinists or toolmakers using an arbor press or mallet in conjunction with properly reamed holes sized to the pin's tolerance class. Ensure the mating hole is clean, deburred, and within tolerance before pressing the pin. A light application of oil or assembly lubricant can aid insertion and prevent galling. The threaded end should be kept clean and undamaged to allow pull-out tool engagement during removal.