moeren

Moeren are fasteners with internal threading designed to mate with bolts or studs, forming a secure joint by providing a threaded receptacle for a male fastener. The term is Dutch for nuts (plural of moer). Nuts are used across engineering, construction, and consumer hardware to clamp parts together and transmit load.

Common types include hex nuts, the most widely used due to multi-face wrench access; lock nuts that resist loosening through locking features such as nylon inserts (nylock nuts) or prevailing-torque designs; flange nuts with a built-in washer surface to distribute load; cap nuts that cover the bolt end for protection or aesthetics; wing nuts for hand tightening; and square nuts or captive nuts used in specific assemblies or joints.

Materials and finishes vary by application. Steel is the standard base material, with carbon or alloy steel offering strength. Stainless steel provides corrosion resistance, while aluminum and brass are used for lighter loads. Finishes include zinc plating, galvanizing, black oxide, or painted coatings; some nuts incorporate a nylon insert for locking action.

Standards and sizes follow regional practices. In most countries, metric nuts use ISO metric threads (M sizes) and may be coarse or fine pitch; in North America, imperial UNC or UNF threads are common. Diameters and thicknesses are specified to match corresponding bolts.

Applications and use. Nut and bolt assemblies appear in machinery, automotive, electronics enclosures, construction, and consumer products. Correct pairing with a compatible bolt, appropriate thread engagement, and correct torques are essential to achieve the desired clamping force and avoid loosening or failure.