tegenstuk

Tegenstuk is a Dutch noun used in technical and everyday language to denote a component that serves as a counterpiece or counterpart to another part. It is typically designed to mate with another piece to form a joint, support, or opposing surface in an assembly.

In practice, a tegenstuk functions as a counterface that provides the proper geometry, alignment, and load transfer between parts. It may form the opposing surface in clamping or machining setups, or act as a paired element that stabilizes workpieces, guides tools, or distributes forces. The exact form and material of a tegenstuk vary with the application, ranging from metal plates to smaller inserts or blocks.

Etymologically, the word combines tegen (against) and stuk (piece). In Dutch technical literature, it is used to describe a paired element rather than a standalone part. When translating to English, the closest equivalents are counterpiece or counterpart, though the precise translation depends on the specific context and field of use.

See also: counterpiece, counterpart, counterface, backing piece.