QUALITY MATERIALS - Durable aluminum construction designed for bookbinding use. Extremely versatile binders in the black color. EASY-TO-USE - Quickly and easily add more documents to your binding project. The ideal choice for price books, menus, swatch books, photo albums, and other binding projects. PRE-SIZED POST EXTENSIONS - Each post extension has a post length of 3/4 inch and post diameter of 3/16 inch. Designed for holes 1/4-5/16 inches in size. UNIVERSAL COMPATIBILITY - Manually attach post extensions to any set of TruBind Chicago screw and post set to add length to your pre-punched document. RECYCLABLE - All TruBind Chicago screws, posts, and extensions are made of solid aluminum and are 100% recyclable.

Screw posts, also known as Chicago screws or book binding posts, are extremely versatile binders that allow loose documents of practically any shape or size to be securely bound together. These low-cost, reusable Chicago screws enable you to easily change out bound documents, making them a great choice for price books, menus, swatch books, architectural and engineering drawings, and much more. TruBind’s high quality, black-colored aluminum screw posts provide an easy-to-use alternative to other binding methods at an exceptionally low price point. Their two-piece construction allows for no-fuss updates, which is why they’re an ideal choice for applications that require frequent updates. They are also easy to expand, with a number of screw post extensions readily available.