The official version of the standard is available through professional standards distributors: Din 1624 | PDF - Scribd
The is a widely referenced specification in the manufacturing industry, primarily covering two distinct areas: cold-rolled unalloyed steel strip and furniture "T-nuts" (driving nuts). While the standard for steel strip has been technically superseded by European norms, it remains a vital reference for legacy technical data and component manufacturing. Overview of DIN 1624
: Options include bright (RPG), matt (m), and surfaces intended for electroplating (UG).
: Common grades like St 2 (1.0330) and St 4 (1.0338) are suitable for forming and surface refinement.
In the German standardization system, DIN 1624 historically defined the technical delivery conditions for with widths up to 650 mm and thicknesses up to 6 mm. However, in modern fastener catalogs, "DIN 1624" is most commonly used to describe four-prong T-nuts , which are essential hardware in the furniture and woodworking industries. Technical Specifications for DIN 1624 T-Nuts
Before its partial withdrawal, the standard categorized mild steels into various grades (e.g., St 2, St 3, St 4) based on their mechanical properties and surface finishes:
: For current projects requiring cold-rolled strip, DIN EN 10139 is the modern replacement. Where to Find the DIN 1624 Standard PDF
T-nuts produced according to this standard are designed to provide a threaded steel socket in wooden surfaces. The typical configuration includes a flat base with four sharp prongs that "bite" into the wood to prevent rotation during assembly. Specification M4, M5, M6, M8, M10, M12 Material Zinc-plated carbon steel or A2/A4 stainless steel Thread Type Standard Metric Field of Use Furniture assembly, cabinetry, and wooden structures Steel Strip Delivery Conditions (Legacy)
