Flower Nuts Screws Button Rivet Locking Set Fastener Tool Expansion Petal

Flower Nuts Screws Button Rivet Locking Set Fastener Tool Expansion Petal

• 4 Essential Sizes：Includes M4-20, M4-25, M5-25, and M6-25 jack nuts for common fastening and repair needs, giving you multiple size options for license plates, sheet metal, hollow panels, brackets, and everyday DIY hardware projects
• Secure Expansion Grip：Petal-style jack nuts expand behind thin or hollow surfaces as the screw tightens, creating a stable hold that helps reduce spinning and loosening on sheet metal, plastic panels, composite boards, hollow walls, and aluminum frames
• Galvanized Carbon Steel：Made from strong carbon steel with a galvanized surface that helps resist rust, moisture, and everyday wear, providing dependable fastening performance for indoor, outdoor, workshop, garage, and vehicle-related applications
• Simple Hand Tool Installation：Insert the jack nut into a properly sized pre-drilled hole, hold it steady with a wrench or pliers, then tighten the screw until the petals expand behind the panel, allowing convenient installation without specialized equipment
• Versatile Repair Hardware：Suitable for mounting license plates, vehicle panels, HVAC covers, metal brackets, signs, equipment panels, and other thin or hollow structures, making these expansion fasteners useful for maintenance, repair, fabrication, and DIY projects