All machines screws -1/2 wood screws, prime coated. The 2029 single-action spring hinges by S. Parker offer tamper-resistant spring action to meet the needs of the New York City Housing Authority (NYCHA). The top button on the hinge is not detachable in order to satisfy those standards, ensuring that the spring cannot be altered or removed.
Complies with NYC Housing Standards; Patented Non-Removable Caps. The pair is being sold.