400Pcs SAE Rivet Nut Kit, UNC Threaded Insert Nutsert Set, 6-32 8-32 10-24 1/4-20 5/16-18 3/8-16 Flat Head Carbon Steel Zinc Plated Rivnuts for Metal Sheet Fasteners. Material: Carbon Steel. Fastener Type: Rivet. Thread Size: 6-32 8-32 10-24 1/4-20 5/16-18 3/8-16. Exterior Finish: Zinc. Color: Yellow. SAE 400-Piece Rivet Nut Assortment Kit: This nut kit includes 6 common UNC thread sizes: #6-32 (72pcs), #8-32 (100pcs), #10-24 (100pcs), 1/4-20 (80pcs), 5/16-18 (30pcs), and 3/8-16 (18pcs). These nutserts create strong threads in thin or hollow materials. Suitable for a variety of repair, installation, maintenance, and DIY fastening applications. Zinc Plated Carbon Steel Rivnuts: These riv nuts are made from carbon steel with a zinc-plated finish to help resist rust and surface wear in dry or mildly humid environments. The blind rivet nut enables one side installation: use a rivet nut tool to expand the tail, forming strong internal threads on thin plates or closed profiles (Tool not included.) Flat Head Knurled Body Rivet Nut: Each threaded insert features a flat head for a clean installation finish and a knurled body to help increase grip and torque resistance during installation, reducing the chance of slipping or loosening. Wide Application: This zinc plated carbon steel threaded insert assortment is engineered to create strong, secure threaded connections in thin sheet metal, steel, aluminum, and similar materials. These rivnut sets are widely used in automotive repair, furniture assembly, bicycle maintenance, appliance installation, machinery servicing, electrical work, and general DIY projects. Organized Storage Case: All 400 pieces in this rivnut kit are individually sorted by size in a sturdy, clear storage box with labeled compartments. You can easily and quickly find the exact SAE standard rivet nut you need. Compact and portable keeps your riv nuts organized for any job. Fastener Type: Rivet. Thread Size: 6-32 8-32 10-24 1/4-20 5/16-18 3/8-16. Exterior Finish: Zinc. Color: Yellow. Thread Style: Right Hand. Thread Coverage: Partially Threaded. Item Dimensions: 9.17 x 4.61 x 1.61 inches. Item Weight: 2.7 pounds. Size Name: SAE kits 400pcs. Number of Pieces: 400. Material Type: Carbon Steel. Metal Type: Carbon Steel. Finish Types: Zinc Plated. Brand: DFDU. Item Weight: 2.7 pounds. UPC: 717929294662. Set Name: DFDU SAE Rivet Nut Assortment Kit(400Pcs). Manufacturer: DFDU. Number Of Items: 1. Model: RN-002. Part Number: RN-002. Unit Count: 400 Count. ASIN: B0GT4KQFDL.