A fastener (US English) or fastening (UK English) is a hardware device that mechanically joins or affixes two or more objects together.

A nail gun, nailgun or nailer is a form of hammer used to drive nails into wood or other materials.

A powder-actuated tool (PAT, often generically called a Hilti gun or a Ramset gun after their manufacturing companies) is a type of nail gun used in construction and manufacturing to join materials to

A single shot concrete nail gun is a manually indexed, powder-actuated fastening tool designed to drive one mini nail per trigger pull into concrete, steel deck, or masonry. Unlike semi-automatic mult