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3" Aluminum Screw Posts - 100pk

3" Aluminum Screw Posts - 100pk

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3" Aluminum Screw Posts - 100pk

Check out these 3" removable aluminum fasteners often used for photo albums, swatch books, architectural and engineering drawings, menus, and many other applications where loose sheets need to be kept together. These 3" aluminum screw binding posts are sometimes called Chicago screws or Chicago screwposts, and they consist of two pieces (screw and post) that are designed to be inserted into round hole punched papers and covers. Measuring 3" in length, these screwposts should be used to bind documents of the same 3" thickness in order to acheive maximum strength. Screwposts are perfect for binding large documents and can even be combined with screwpost extensions to reach any length you might need. These particular 3" screwposts are designated with the product number SO003ASP.

Product Details:
  • The diameter of these posts is 3/16" and they are designed for use with a 1/4" hole that can be either punched or drilled into your documents to accept these posts.
  • The post length for these screw posts is 3". This means that the maximum binding thickness for these screw posts is 3". For best results and to ensure a correct fit, please measure your document thickness and ensure that it will fit.
  • The heads of the posts and the screws are 7/16" in diameter to ensure a good fit with 1/4" holes.
  • These aluminum screw posts are packaged 100 Per Box
  • Part Number: SO003ASP

If you have any questions about these screw posts or any of the other binding supplies that we carry please call us toll free at 1-800-944-4573 or email us at

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