These are two-piece aluminum Chicago screws, also called screw posts or binding posts, sized at 3/4 inch. They bind loose documents, swatch cards, menus and drawings, and the two-piece design lets you open and re-close a bound stack without damaging it. Compared with plastic comb or spiral binding, they are reusable and expandable with screw post extensions, but they hold a stack by a single post, so thick or heavy books need more than one. Buyers rate them highly, and the common notes are about fit and length rather than quality.
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Buyers rate these highly and mostly praise the clean finish and the easy two-piece assembly. Complaints center on length and fit for thicker stacks and on posts loosening over time.
Chicago screws, also called screw posts or book binding posts, bind loose documents together. They work with documents of practically any shape or size. These posts are made of aluminum.
Each post has a two-piece construction. The pieces come apart, so bound documents can be changed out and the posts reused. This suits applications with frequent updates, such as price books, menus, swatch books, and architectural and engineering drawings.
Screw post extensions are available to expand the binding.
