Marson 1/4″-20″ Steel Mandrel for Thread-Setter (39258)

The Marson 1/4″-20″ Steel Mandrel for Thread-Setter (39258) is a specialized replacement component designed for use with the Marson 39200 Thread-Setter tool. It accepts 1/4″-20 threaded rivet nuts, providing a secure interface for professionals performing automotive and industrial assembly, maintenance, and repair work. Constructed from durable steel, the mandrel withstands the tension and rotational forces generated during the rivet nut installation process.Key Features and Benefits: Tool Compatibility: Specifically manufactured for the Marson 39200 Thread-Setter tool to provide proper fitment and reliable operation. Thread Specification: Precision-machined with 1/4″-20 threads for compatibility with standard threaded rivet nuts. Durable Construction: Made from steel to resist wear, tension, and mechanical stress during repeated fastener installations. Easy Replacement: Designed for straightforward removal and installation, helping reduce downtime during tool maintenance or mandrel changes.Specifications: Product Name: Marson 1/4″-20″ Steel Mandrel for Thread-Setter (39258) Model Number: 39258 Thread Size: 1/4″-20 Material: Steel Overall Length: 4 inches Capacity: Accepts 1/4″-20 threaded rivet nuts Compatible Tool: Marson 39200 Thread-Setter Measurement System: Imperial Country of Origin: Taiwan Package Contents: One Marson 39258 mandrelHow to Use: Disconnect the Marson 39200 Thread-Setter from any air or power supply before beginning maintenance. Use the appropriate service wrench to loosen and remove the existing mandrel from the tools nose assembly. Clean the nose area and remove any dirt, debris, or metal shavings left from previous operations. Insert the Marson 39258 mandrel into the tool housing and carefully align the threads to prevent cross-threading. Tighten the mandrel securely according to the tool manufacturers recommendations. Thread a 1/4″-20 rivet nut onto the mandrel to confirm smooth engagement before operating the tool.Benefits of Using Marson 1/4″-20″ Steel Mandrel for Thread-Setter (39258): Maintains Tool Performance: Helps preserve the accuracy and efficiency of the Marson 39200 Thread-Setter. Reduces Fastener Misalignment: Provides a properly sized interface that supports accurate rivet nut positioning and installation. Supports Consistent Results: Maintains secure thread engagement during repetitive or high-volume fastening applications. Extends Tool Usability: Replacing a worn or damaged mandrel allows the existing thread-setting tool to remain operational. Suitable for Demanding Work: Steel construction provides dependable performance in automotive and industrial environments.Features: Precision-Machined Body: Manufactured to support accurate engagement with compatible threaded rivet nuts. Four-Inch Length: Provides suitable reach for standard thread-setting and maintenance applications. Imperial Thread Design: Configured for hardware that uses the 1/4″-20 imperial thread standard. Replacement Component: Allows worn mandrels to be replaced without purchasing an entirely new thread-setting tool. Standardized Connection: Integrates easily with compatible Marson tool components and existing professional tool kits. Cross-Reference Compatibility: Associated with Grainger part number 5JK71 and manufacturer model M60303.