Jergens 31429 Flat Vent Pull Out Dowel Pin 1/2 X 1 in

Product Description

The JERGENS 31429 is a flat vent pull out dowel pin manufactured from alloy steel grade C-1215 and built to ASME B18.8.2 standards. It features a threaded end for pull-out removal and a flat vent groove that allows air and fluid to escape during press-in installation, preventing hydraulic lock. At 0.5 inches in diameter and 1 inch in overall length, this pin is suited for precision locating and alignment applications in machined assemblies. Machinists, toolmakers, and maintenance technicians working with jigs, fixtures, dies, and molds will find this pin a reliable standard component.

This dowel pin is used in industrial and manufacturing environments where repeatable, tight-tolerance alignment between mated parts is required. The threaded pull-out end allows removal from blind holes without damage to the workpiece or the pin. Its compact 0.5 by 1 inch size fits a wide range of light to medium-duty fixturing and tooling setups in both production and maintenance shops.

Key Features

• Flat vent groove prevents hydraulic lock during installation into blind holes
• Threaded end enables clean pull-out removal from blind bores
• Alloy steel grade C-1215 construction for reliable strength in precision fitment applications
• Meets ASME B18.8.2 fastener standard for consistent dimensional control
• Diameter tolerance of -0.0001 to +0.0001 inches for tight locating accuracy

Compatibility

Designed as a standard OEM-style replacement or new-install dowel pin for jigs, fixtures, dies, molds, and machined assemblies requiring a 0.5-inch diameter blind-hole locating pin with pull-out capability.

Installation Notes

Installation is typically performed by machinists or maintenance technicians using an arbor press or similar controlled-force equipment. Ensure the receiving hole is clean, properly toleranced, and free of burrs before pressing the pin into place. The flat vent groove must be oriented to allow trapped air and fluid to escape. For pull-out removal, thread an appropriately sized puller or slide-hammer adapter into the threaded end and extract the pin axially without side loading.