78Pcs 1/4 5/16 3/8 Rivet Nut Kit, SAE Rivnut Kit,Threaded Inserts for Metal

78Pcs 1/4 5/16 3/8 Rivet Nut Kit, SAE Rivnut Kit,Threaded Inserts for Metal

• PREMIUM MATERIALS: Crafted from high-quality carbon steel with a zinc-plated finish, these SAE rivet nuts deliver dependable corrosion resistance and long-lasting durability — ideal for both indoor and outdoor projects, from automotive repairs to heavy-duty workshop builds.
• INSTALL FROM ONE SIDE: No need to reach the back of the workpiece. Simply insert into a pre-drilled hole and compress with a manual, pneumatic or electric rivet nut tool — creates strong, permanent threads in sheet metal, box frames, enclosures, panels and other hard-to-reach areas where conventional nuts or welding can't work.
• FLAT HEAD & KNURLED BODY: The flat head sits flush for a clean, professional finish, while the knurled body embeds into the material during installation to resist rotation and prevent loosening under vibration — a secure, slip-free hold that stands up to demanding automotive and workshop environments.
• 78 PIECES IN 3 SIZES: A complete assortment covering the three mid-large imperial sizes that carry the real load — 1/4"-20 UNC (42 pcs), 5/16"-18 UNC (24 pcs), 3/8"-16 UNC (12 pcs), 78 pieces in total — sorted by size in a sturdy, transparent storage case with labeled compartments, so every size stays organized, protected and ready to grab.
• WIDE APPLICATIONS: These mid-large SAE rivet nuts create strong, reusable threads in sheet metal, steel, aluminum and fiberglass. Widely used in automotive suspension and brackets, truck bodies, farm equipment, heavy furniture frames, steel shelving and machinery maintenance — a practical fastener solution for mechanics, fabricators and home workshop enthusiasts.