YMAISS 90 Sets Chicago Screws 3 Size 1/4,3/8,1/2in Screw Posts Bookbinding Posts Binding Screw Chicago Button Post Rivets Screw Belt Screws Leather Photo Albums Screw Round Flat Head, Silver Color
Chicago screws: 3 sizes, 30sets for each size, 90 sets binding screws in total in one box
Screw post with 3 different sizes: post diameter is 3/ 16 inch/ 5 mm, 3 kind of post length are 1/ 4 inch/ 6 mm, 3/ 8 inch/ 10 mm. 1/2 inch/12 mm
These book binding posts are made of high quality carbon steel material, Nickel Plated, hard, sturdy and durable, with nickel plated on the surface, not easy to get rust and erosion.
Threaded post let you easily applied with standard screwdriver.Easy to bind and remove, can be used repeatedly,good tightness.
Wide application: especially suit for leather handicrafts decoration, bookbinding, document, scrapbook, photo,book, album binding, belt repair, DIY crafts, etc.