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The MARSON M39313 is a 63-piece aluminum manual rivet nut tool kit designed for installing threaded inserts into sheet metal, thin-gauge steel, aluminum, and similar materials. The kit covers two common thread sizes: 6-32 and 3/8-16 inches, making it a practical solution for a range of fastening tasks on the job site or in the shop. The manual hand tool drives rivet nuts without power tools, giving installers direct control over setting force. At 3 pounds, the kit is compact enough for a tool bag. Fastener technicians, HVAC sheet metal workers, electricians, and general contractors use rivet nut tools when a standard threaded hole is not available in a thin substrate.
This kit is suited for light to medium-duty applications where threaded inserts must be set into materials that cannot accept a conventional tapped hole. Typical uses include mounting brackets, electrical enclosures, HVAC panels, equipment frames, and automotive or trailer bodywork. The inclusion of aluminum rivet nuts makes the kit appropriate for corrosion-sensitive environments or where weight savings matter. Both 6-32 fine-thread and 3/8-16 coarse-thread sizes are covered, addressing a wide range of fastener specifications common in mechanical and electrical assembly work.
Designed as an OEM-style rivet nut tool kit for use with standard 6-32 and 3/8-16 aluminum rivet nuts in sheet metal and thin-substrate fastening applications.
Installation should be performed by a qualified tradesperson familiar with threaded insert fastening techniques. Drill the correct clearance hole diameter for the chosen rivet nut thread size before setting; using an undersized or oversized hole will result in a failed installation. Ensure the substrate is secured before setting inserts to prevent movement. Inspect each installed rivet nut for full flange seating and thread engagement before applying load.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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