Nuts defined in the DIN 439 standard published by the German Standardization Institute (DIN) are thin hexagonal compression nuts with 0,5 diameter thickness. The hex jam nut is a low profile type of hex nut that is typically about half as thick as a regular hex nut. It is often used as a locknut and is screwed into place against a standard nut. Also, where a standard nut is too thick for an application, a hex jam nut is a very useful alternative. Thin hex compression nuts are available in two types, without chamfer (Type A) and with chamfer (Type B).
Similarly, in the ISO 4035 standard published by the International Standards Organization (ISO), product quality A for threads smaller than M16 and product quality B for threads larger than M16, beveled hexagonal fine with threads from M1,6 to M64 the characteristics of the nuts are described (ISO 4035 Chamfered hex thin nuts, style 0 - Product grades A and B).
The similar ISO 4036 standard describes the characteristics of chamferless hexagonal thin nuts with threads from M1,6 to M10 and product grade B (ISO 4036 Chamferless hexagonal thin nuts, style 0 - Product class B).
Likewise, the ISO 8675 standard describes the characteristics of chamfered hexagonal thin nuts with metric fine pitch threads with nominal thread diameters from 8 mm to 64 mm, in product class A for sizes smaller than 16 mm and in product class B quality for sizes larger than 8675 mm. (ISO 0 Metric fine pitch threaded chamfered hex thin nuts, style XNUMX - Product grades A and B).
Also, the BS 3692 standard published by the British Standards Institute (BSI) describes the requirements for precision hex bolts, screws and nuts (BS 3692 ISO metric precision hex bolts, screws and nuts). This standard includes the chemical composition, mechanical properties, test loads (rough pitch series), tolerances over standard nominal lengths and thread tolerance classes of steel nuts.
Our organization, with its trained and expert staff and advanced technological equipment, provides numerous testing, measurement, analysis, and evaluation services for businesses in various sectors, including testing for thin hexagonal clamping nuts under the DIN 439 standard, for chamfered hexagonal thin nuts under the ISO 4035 standard, for unchamfered hexagonal thin nuts under the ISO 4036 standard, for metric thin-pitch threaded chamfered hexagonal thin nuts under the ISO 8675 standard, and for ISO metric precision hexagonal bolts, screws, and nuts under the BS 3692 standard.
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