Jergens 31653 Pull Out Dowel Pin 1x4 in Alloy Steel

Product Description

The JERGENS 31653 is a pull out dowel pin manufactured from alloy steel with a threaded end design that allows for extraction using a standard puller or threaded rod. This pin measures 1 inch in diameter and 4 inches in overall length, holding a tight diameter tolerance of -0.0001 to 0.0001 inches for precise locating in close-tolerance assemblies. Produced to ASME B18.8.2 standards, the 31653 is suited for tooling, fixture, and machine component alignment applications where repeatable removal is required without damaging the mating bore.

Pull out dowel pins are used in industrial and manufacturing environments wherever components must be precisely located and periodically disassembled. The threaded end eliminates the need for a hammer or press to extract the pin, making it practical in blind-hole applications. Machinists, toolmakers, and maintenance mechanics install these pins in fixtures, dies, jigs, and machine bases.

Key Features

• Threaded end allows tool-assisted extraction from blind holes without bore damage
• 1 inch diameter with a precision tolerance of -0.0001 to 0.0001 inches for close-fit locating
• 4 inch overall length suits deeper locating and alignment bores
• Alloy steel construction provides strength and wear resistance for repeated use
• Manufactured to ASME B18.8.2 for standardized dimensional compliance

Compatibility

Designed as a standard ASME B18.8.2 pull out dowel pin for use in tooling, fixturing, and precision machine assembly applications requiring a 1 inch diameter locating pin.

Installation Notes

Pull out dowel pins are typically installed by toolmakers or maintenance mechanics using a press or light mallet to seat the pin flush or to a specified depth. Always de-energize and lock out machinery before servicing any pinned assembly. Use the threaded end with a matching puller or threaded rod for extraction - do not drive from the threaded end. Verify bore diameter and surface condition before installation to ensure proper fit and prevent galling.