An assortment of nylon binding posts and screws from Hillman. A binding post is used with a screw to secure multiple items through a hole. The screw threads into the binding post, and each end has a head larger than the diameter of the post to contain the contents. The contents could be sheets of metal, paper or plywood. Nylon binding posts are ideal for binding together reports and other thick stacks of paper to help you stay organized. Full assortments of #4262 contain eleven (11) refills comprised of Hillman item #'s 4263-4273.