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The VALUE COLLECTION 208940 is a 3/8-16 hex head cap screw measuring 2-1/2 inches under the head, manufactured from 18-8 stainless steel. The 18-8 grade alloy provides corrosion resistance suitable for both indoor and outdoor fastening applications in plumbing, HVAC, electrical, and general mechanical assembly work. The 9/16-inch hex drive is compatible with standard combination wrenches and sockets. The Unified National Coarse (UNC) thread form is the most common inch-series thread standard used across North American trade applications. This fastener is sold individually but carries a minimum order quantity of 10 units.
This hex head cap screw is appropriate for general structural and mechanical fastening tasks encountered by HVAC technicians, plumbers, electricians, and maintenance professionals. Its stainless steel construction makes it a practical choice in environments with moisture exposure, such as mechanical rooms, rooftop equipment installations, condensate areas, and outdoor enclosures where carbon steel fasteners would be prone to rust and seizure.
Designed as a standard inch-series UNC hex head cap screw suitable for general mechanical and structural fastening applications across HVAC, plumbing, electrical, and equipment maintenance trades.
Installation does not require specialized tools beyond a 9/16-inch wrench or socket. Stainless steel fasteners are susceptible to galling during installation — apply an anti-seize compound when threading into stainless or aluminum to prevent thread damage. Avoid over-torquing, as 18-8 stainless has lower tensile strength than alloy steel grades. Follow applicable mechanical codes for the specific equipment or structure being fastened.
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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