Marson Metric Poly-Nut Thread Setter Kit (39303)

The Marson Metric Poly-Nut Thread Setter Kit (39303) is a professional-grade manual fastening system designed to install threaded inserts in thin materials. The kit creates permanent, load-bearing metric threads in sheet metal, tubing, rigid plastics, and similar substrates where conventional tapping may not be practical. Its compression-based setting action secures each Poly-Nut against the reverse side of the material, creating a stable attachment point for compatible bolts and screws. Suitable for automotive maintenance, metal fabrication, industrial assembly, and field repairs, the kit supports four commonly used metric thread sizes and includes the necessary installation hardware and fasteners.Key Features and Benefits: Versatile Metric Range: Supports M4, M5, M6, and M8 threaded inserts for compatibility with several common metric fastener sizes. Manual Operation: Requires no compressed air, batteries, or electrical power, allowing the tool to be used in workshops and field environments. Complete Installation Kit: Includes the M39300 setting tool, compatible mandrels and nosepieces, an adjustment wrench, and 75 assorted Klik Poly-Nuts. Secure Thread Creation: Compresses the insert against the blind side of the material to form a stable, load-bearing attachment point. Organized Storage: Molded plastic carrying case keeps the tool, fasteners, and accessories protected and arranged for convenient transport. Surface-Friendly Installation: Creates threaded mounting points without welding or applying excessive heat to the surrounding material.Specifications: Product Name: Marson Metric Poly-Nut Thread Setter Kit (39303) Model Number: 39303 Tool Type: Manual metric threaded insert setter kit Tool Capacity: M4, M5, M6, and M8 Klik Poly-Nuts Supported Metric Sizes: 4mm, 5mm, 6mm, and 8mm Included Tool: M39300 manual Thread-Setter Included Mandrels and Nosepieces: M4, M5, M6, and M8 sets Fastener Capacity: 75 assorted Klik Poly-Nuts Included Adjustment Tool: One wrench Operation Type: Manual lever action Case Type: Molded plastic carrying case Package Contents: One M39300 Thread-Setter, four metric mandrel and nosepiece sets, 75 assorted Klik Poly-Nuts, one wrench, and one molded plastic carrying caseHow to Use: Select the Installation Hardware: Choose the mandrel and nosepiece that match the M4, M5, M6, or M8 Poly-Nut being installed. Install the Mandrel: Secure the selected mandrel onto the M39300 setting tool. Attach the Nosepiece: Fit the corresponding nosepiece and tighten it using the supplied wrench. Load the Poly-Nut: Thread the insert onto the mandrel until its flange rests against the nosepiece. Prepare the Workpiece: Create a correctly sized mounting hole and remove any burrs, dirt, or debris. Position the Insert: Place the Poly-Nut completely into the prepared hole until its flange sits against the material surface. Set the Poly-Nut: Squeeze the tool handles together to compress the insert body against the reverse side of the material. Check the Installation: Confirm that the insert is firmly seated, properly aligned, and unable to rotate inside the hole. Release the Tool: Turn the tool knob to unthread the mandrel from the installed Poly-Nut. Attach the Component: Secure the required component using a bolt or screw that matches the installed metric thread size.Benefits of Using Marson Metric Poly-Nut Thread Setter Kit (39303): Creates Threads in Thin Materials: Provides reliable thread engagement where the workpiece is too thin for conventional tapping. Supports Blind-Side Installation: Allows threaded attachment points to be added when the reverse side of the panel cannot be reached. Eliminates Welding Requirements: Installs captive threads without welding equipment, heat exposure, or extensive surface preparation. Improves Installation Control: Manual handle operation allows the user to control the compression force applied to each insert. Reduces Project Downtime: Four included metric configurations allow users to change between common fastener sizes using one kit. Provides Immediate Usability: The included assortment of 75 Klik Poly-Nuts supports multiple repair and assembly tasks.Features: Interchangeable Hardware System: Replaceable mandrels and nosepieces support rapid transitions between four metric thread sizes. Compact Lever Configuration: Manual plier-style design provides controlled force in workshops and confined work areas. Precision-Machined Components: Installation hardware is designed to maintain proper thread alignment during insert compression. Rigid Tool Frame: Reinforced construction supports the pulling force required to collapse compatible threaded inserts. Dedicated Storage Slots: Molded case compartments help prevent the loss of mandrels, nosepieces, fasteners, and adjustment tools. Portable Tool Design: Self-contained manual operation makes the kit suitable for mobile maintenance and on-site assembly work.