About This Assortment of sizes: 100 sets of Chicago screw posts per package, 6 different sizes, M5*4, 5, 6, 7, 8, 10mm, extra Phillips screwdriver and hole punch. Color: Bronze Versatile use: These chicago screws is used for leather crafts, as a fixed or decorative item. Perfect for bookbinding, leather crafts, and various DIY projects requiring secure and adjustable fastening Construction: Leather screw rivets made from durable metal with two interlocking pieces - a post and screw that firmly connect when assembled.They are smooth, burr free, waterproof, durable, and have high hardness. Eaey installation: First, use a punch to drill holes at the location where you want to install screws; Secondly, select the appropriate pipe height, thread the bolt through the hole, align the nut with the bolt, and tighten the screw with a screwdriver. Reusable storage boxes: 100 set chicago screws along with 2pcs install tools in an clear plastic storage box. The book screws are arranged according to size, you can easily store and find the size you need.
