Jergens 31441 Flat Vent Pull Out Dowel Pin 5/8 X 2 in

Product Description

The JERGENS 31441 is a flat vent pull out dowel pin manufactured from C-1215 alloy steel and designed for precision fixturing and alignment applications in industrial and mechanical assemblies. At 5/8 inch in diameter and 2 inches in overall length, this pin holds tight diameter tolerances of -0.0001 to 0.0001 inches, making it suitable for repeatable locating work where fitment accuracy is critical. The threaded end design allows the pin to be extracted cleanly from blind holes without the need for a press or hammer, reducing the risk of bore damage during disassembly. Machinists, toolmakers, and maintenance technicians are the primary installers.

This dowel pin is used in manufacturing, tooling, and machine assembly environments where controlled alignment between mated components is required. The flat vent feature allows trapped air and lubricant to escape during press-fit installation, preventing hydraulic lock in blind bores. It is a direct fit for applications calling out ASME B18.8.2 standard pull out dowel pins at the 5/8 inch diameter and 2 inch length specification. Sold individually.

Key Features

• Threaded end for clean extraction from blind holes without press or impact tools
• Flat vent design prevents hydraulic lock during installation in blind bores
• Diameter tolerance of -0.0001 to 0.0001 inches for precision alignment fitment
• C-1215 alloy steel construction for strength and machinability
• Meets ASME B18.8.2 fastener standard

Compatibility

Designed as an OEM-style replacement or direct fitment for applications specifying ASME B18.8.2 flat vent pull out dowel pins at 5/8 inch diameter and 2 inch length.

Installation Notes

Installation and removal are typically performed by machinists or maintenance technicians using standard hand tools. Always ensure the receiving bore is clean, deburred, and dimensionally verified before driving or pressing the pin into position. Use the threaded end with an appropriate extraction tool or slide hammer to remove the pin without damaging the bore. Follow applicable shop safety and lockout/tagout procedures before working on any assembly containing these pins.