moer

Moer is the Dutch term for a nut, a type of fastening device that provides a threaded hole for a bolt or screw. Nuts are used with male-threaded fasteners to secure components together and to resist loosening under vibration. The most common form is the hex nut, which has six flat sides for wrench engagement, though square nuts, flange nuts, and lock nuts are also widely used. Lock nuts include nylon-insert (nylock) and metal-lock types designed to resist loosening.

Materials and finishes: Nuts are manufactured in steel (carbon or alloy), stainless steel, brass, and aluminum. They may be zinc plated, galvanized, black-oxide coated, or otherwise treated to improve corrosion resistance or appearance. Metric and imperial thread standards are used in different regions; matching the nut to the bolt thread is essential.

Sizes and standards: In international practice, hex nuts are specified by nominal diameter and thread pitch according to ISO or DIN standards, such as ISO 4032 or DIN 934. In the United States, sizes often follow UNC/UNF threads. The grade or class rating (for example, 8, 10, or 12) indicates strength in metric equivalents as well.

Applications and use: Nuts and bolts form a simple, removable fastener system used across construction, automotive, machinery, and consumer products. Proper tightening torque, adequate thread engagement, and protection against vibration are important considerations.

Etymology: The word moer comes from Dutch, cognate with similar Germanic terms, and in English the equivalent term is nut. See also bolt, thread, and fastener.