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The VALUE COLLECTION JN9XX03000-005BX is a thin-profile hex nut manufactured from Grade 316 austenitic stainless steel (Austenitic Grade A4) and supplied in a bright, uncoated finish. Conforming to DIN 439B, this nut features an M30 x 3.50 metric thread with a right-hand thread direction and a 6H thread fit class. The thin hex profile reduces overall stack height in assemblies where space is limited. With a width across flats of 46 millimeters and a height of 15 millimeters, it is sized for use with standard M30 fastener hardware. Installers in plumbing, marine, chemical processing, and general industrial trades rely on Grade 316 stainless for its corrosion resistance in wet or chemically aggressive environments.
This thin hex nut is suited for applications where corrosion resistance is critical, including marine hardware, pipe flange assemblies, wastewater treatment equipment, and coastal or offshore installations. The DIN 439B standard makes it compatible with metric fastener systems commonly found in European-specification equipment and machinery. Plumbers, pipefitters, and mechanical contractors working with stainless fastener assemblies will find this nut appropriate for both new construction and maintenance work on M30-threaded rod or bolt applications.
Designed for use with M30 x 3.50 metric threaded fasteners conforming to DIN standards. Suitable for stainless steel bolt and rod assemblies requiring a thin hex nut profile per DIN 439B.
Installation should be performed by a qualified mechanic, pipefitter, or millwright familiar with metric fastener torque requirements for the specific application. Always verify thread engagement and fit class compatibility before final assembly. Use appropriate metric hex tooling to avoid rounding the flats on stainless hardware. Avoid mixing stainless and carbon steel fastener components, as galvanic corrosion may occur in wet environments.
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