Metal fasteners are small pieces of hardware used to join two or more objects together. The crossword solutions for the term metal fastener include TNUT (4 letters), RIVET (5 letters), PIN (3 letters), STAPLE (6 letters), NAIL (4 letters), SCREW (5 letters), BOLT (4 letters), SNAP (4 letters), HASP (4 letters), PAPERCLIP (9 letters), STUD (4 letters), UBOLT (5 letters), SETNUT (6 letters), and COTTERPIN (9 letters). Each of these items is designed to securely hold two or more objects together, making them an essential part of many construction projects.