Features : *It's perfect for your car or truck. *High efficiency: The rivets lock nut can be used to fix your rivets, which is very convenient and practical. *Exquisite workmanship: The rivets are made of high-quality stainless steel, which is durable and has a long service life. *Petal Rivets Nut Nuts Car Metal Screw for Hollow Wall Iron Skin Petal Nut Expansion Lantern *Strengthen anchor wings can provide maximum load carrying capacity, which is practical. * Integral threaded adhesive washers can be used for increased reliability, which is with high performance. *Combination head on screw has the ability to receive slot and cross-slot screwdriver. *Entitled with pratical adoptability, its high quality can keep its high performance for a long time. * Built to strict quality control standards, design is improved for more durability. Specifications: Usage：Commercial Manufacture Riveter machine Type：Rivet Nut machine Power Type：Hand Riveters Material: steel, alloy Rivet Head Nuts：M4， M5， M6， M8（optional） Colour:As picture showns Package Included: 1pcs Rivet Head Nut 20pcs Alloy Expansion Clamp Petal Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.