Features Flat Solid Design: Rivets are flat -headed design, which makes the installation easier and can quickly complete and quickly load and uninstall, with a transparent storage box. Excellent Fixed Effect: Aluminum rivets have high accuracy characteristics, excellent fixed effects, not easy to fall off, can well satisfy our use and be practical. High Accuracy: M4 Flat head solid rivets are solid structures with high mechanical strength, with high accuracy, high sensitivity, high stability and durability. Durable and Stable Performance: Solid aluminum rivets are made of selected aluminum materials. It has the characteristics of durability and long service life, which is suitable for long -term work. 7 Rrivets with Different Sizes: This is a rivet set, which includes 7 different rivets with different sizes, which can use demand to meet different needs. Features: 1.Rivet is made of aluminum, long service life. 2.Flat head design makes installation surface simple and beautiful, will not scratch hands. 3.Rivet adopts solid structure with higher mechanical strength. 4.Firm and secure fixation, not easy to fall off. 5.All rivets are assorted and packed in a plastic box according to their sizes, keeping them organized, clean and easy to find. Specification: Material: Aluminum Quantity: 350pcs Package Size: 17.5*10*2cm / 6.9*3.9*0.8in Package Weight: 253g (approx.)   Package List: M4*4mm      50pcs M4*6mm      50pcs M4*8mm      50pcs M4*10mm    50pcs M4*12mm    50pcs M4*16mm    50pcs M4*20mm    50pcs Package List