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The VALUE COLLECTION HN4XX00300-200BX is a metric hex nut threaded M3 x 0.50, manufactured from Grade 316 austenitic stainless steel to DIN 934 specifications. Grade 316 (Austenitic Grade A4) provides strong resistance to chlorides, saltwater, and chemical exposure, making it well suited for corrosive service environments. The nut features a right-hand thread, a width across flats of 5.5 mm, and a height of 2.40 mm. It arrives uncoated with a bright finish. This box contains 200 individual nuts sold as a single package unit, appropriate for stocking fastener inventory on service vehicles or shop benches. Licensed tradespeople and maintenance professionals working with metric hardware will find this a reliable stock item for corrosion-prone installations.
These hex nuts are appropriate for use in plumbing, HVAC, marine, pool, and chemical processing applications where standard carbon steel fasteners would corrode prematurely. The M3 x 0.50 metric thread size is common in small-bore pipe fittings, equipment panels, control enclosures, and bracket assemblies encountered in light commercial and residential trade work. The DIN 934 standard ensures dimensional conformance for use with matching metric bolts and threaded rod in both new construction and retrofit service situations.
Designed for use with M3 x 0.50 metric threaded bolts, screws, and threaded rod conforming to DIN or ISO metric thread standards. Dimensional compliance with DIN 934 ensures interchangeability with other DIN 934 M3 hex nuts.
Installation is performed with a 5.5 mm wrench or socket. De-energize and depressurize any system before replacing fasteners on live equipment. Stainless steel fasteners are susceptible to galling during installation — apply an appropriate anti-seize compound to the threads before assembly and avoid over-torquing. Verify thread engagement depth meets the requirements of the applicable mechanical or structural code for the installation.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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