80PCS Petal Expansion Bolt Set with Toolbox, Expansion Screws Petal Nuts with M4-20, M4-25, M5-25, M6-25 Jack Nut for License Plate Installation, Hollow Wall Iron Skin Line, Sheet Metal Mounting Etc.

Complete 80PCS Set for Multiple Fixing TasksMobiegar set includes M4-20, M4-25, M5-25, and M6-25 petal expansion bolts, giving you the essential sizes for license plate mounting, metal sheet repair, hollow-wall installs, and DIY hardware projects. | Rust-Resistant DurabilityMade from strong carbon steel with a galvanized finish, these petal expansion bolts resist rust, moisture, and daily wearperfect for indoor, outdoor, and automotive use, while staying tight and durable over time. | Easy Installation with Standard Hand ToolsInsert the jack nut into a pre-drilled hole, hold it steady with a wrench or pliers, then tighten the screw until the petals expand behind the panel. No special tools requiredfast and user-friendly. | Strong Expansion Grip for Thin or Hollow MaterialsThe wide petal-style expansion head delivers a firm, non-slip hold on sheet metal, plastic panels, composite boards, hollow walls, aluminum frames, and other thin or hollow surfaces. | Ideal for License Plates, Panels, and General Hardware UsePerfect for license plates, car panels, HVAC covers, metal brackets, billboards, and machinery repair. A handy set for thin metals or hollow structuresideal for garages, workshops, and maintenance.