Jergens 31616 Pull Out Dowel Pin 3/8 X 1 Inch Alloy Steel

Product Description

The JERGENS 31616 is a pull out dowel pin designed for precision locating and alignment applications in machined assemblies. Manufactured from alloy steel with a threaded end, it allows controlled extraction without marring the surrounding bore. The pin measures 3/8 inch in diameter and 1 inch in overall length, holding a tight diameter tolerance of -0.0001 to 0.0001 inches. It conforms to ASME B18.8.2 standards, making it a reliable choice for shops and maintenance teams that require dimensional consistency and interchangeability. Machinists, toolmakers, and maintenance technicians are the primary installers.

Pull out dowel pins are used in jigs, fixtures, dies, and precision machine assemblies where components must be repeatedly located and disassembled without damage. The threaded end accepts a standard extraction tool or threaded rod, allowing the pin to be pulled cleanly from a blind hole. This design is common in production tooling environments, mold bases, and fixture plates where dowel access from only one side is available.

Key Features

• Threaded end enables clean extraction from blind holes without bore damage
• Alloy steel construction provides high shear strength and wear resistance
• Diameter tolerance of -0.0001 to 0.0001 inches ensures precise locating fit
• Conforms to ASME B18.8.2 fastener standard for dimensional interchangeability
• Compact 1 inch length suits thin fixture plates and shallow-bore applications

Compatibility

Designed as an OEM-style replacement or direct fitment for standard 3/8 inch dowel pin bores in jigs, fixtures, dies, and machine assemblies conforming to ASME B18.8.2.

Installation Notes

Installation and removal should be performed by a machinist or qualified maintenance technician. Ensure the receiving bore is clean, deburred, and dimensionally correct before pressing the pin. Use a proper extraction tool threaded into the end of the pin for removal - do not attempt to drive the pin out from the threaded end with a hammer. Follow applicable shop safety practices and consult the fixture or assembly documentation for fit class requirements.