QUALITY AND DURABLE - Made of good quality 304 stainless steel, hard, sturdy and durable, with nickel plated surface, no difficulty to catch rust and erosion, providing long using life span. EASY TO USE - This set of screws is easy to install, use a drill to drill a 5mm diameter hole, then you can install the 2 pieces on both sides, different items can be connected. REUSABLE - The threaded post allows you to open and re-secure the piece using a standard screwdriver. WIDE APPLICATIONS - The posts with screws are suitable for fastening and decorating documents, books, scrapbooks, photo albums, etc, good supplies, especially for leather crafts. 30 SETS - The number of screws consists of screws and the top, they are compatible. Total 60 pieces About Increway: Main Categories: Tools & Home Improvement, Home & Kitchen, Some Professional Mechanical Parts, etc. Our Goal: One-stop buying all kinds of repairs, replacements, and decorations you need in your daily life and work. They can be used for decoration, furniture repair, and your DIY projects, they are a must-have for the family. Office. Office furniture, household appliances, etc., you also need these small parts to prepare emergency parts. < p>Vehicle< /p> Car repair, spare parts, these products will also be a good helper. Machine Reliable quality product, can be used for industrial mechanical maintenance and applications.