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The VALUE COLLECTION HC3X04020-100BX is an M4 x 0.70 x 20 mm hex head cap screw manufactured from 18-8 austenitic Grade A2 stainless steel. This fastener is fully threaded along its 20 mm length under the head and is driven with a 7 mm hex wrench. It conforms to DIN 933, the metric standard for fully threaded hex head bolts. The 18-8 stainless steel construction provides solid corrosion resistance, making it suitable for wet, outdoor, or chemically exposed environments common in HVAC, plumbing, pool, and general mechanical assembly work. This box contains a minimum order quantity of 100 pieces packaged as a single unit.
These screws are used in metric fastening applications across residential and light commercial trade work. Typical use cases include equipment panel assembly, mounting brackets, pump housings, pool equipment enclosures, and conduit or pipe support hardware where metric thread engagement and corrosion resistance are required. The M4 x 0.70 thread pitch and 20 mm length under the head suit thin-to-medium gauge metal assemblies. Technicians in HVAC, plumbing, electrical, and pool service trades will find these a reliable metric option for field repairs and equipment installations.
Designed as a DIN 933-compliant fully threaded metric hex head cap screw for M4 x 0.70 thread applications in standard metric fastening assemblies.
Install with a 7 mm hex wrench or socket driver. Confirm the mating thread is M4 x 0.70 before installation to avoid cross-threading. Stainless steel fasteners can be prone to galling on stainless mating threads — apply an anti-seize compound where thread seizure is a concern. De-energize and isolate equipment per applicable electrical or mechanical safety codes before fastener service.
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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