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The VALUE COLLECTION R63003488 is a hex socket cap screw designed for secure, high-torque fastening in applications where a flush or recessed drive is required. Threaded 1/4-20 UNC with a 3/4-inch length under the head, this fastener is driven with a 3/16-inch hex (Allen) key. Constructed from 316 stainless steel, it offers strong resistance to corrosion in wet, marine, and chemically active environments. Mechanical contractors, plumbers, electricians, and industrial maintenance technicians reach for this screw type when standard Phillips or slotted drives are not appropriate for the application.
This fastener is suited for both residential and commercial installations where a clean, recessed-head profile is needed. Common applications include equipment mounting, panel assembly, piping support hardware, and general mechanical assembly work where 1/4-20 UNC threading is specified. The 316 stainless steel construction makes it a practical choice in corrosive or high-moisture environments such as pool equipment enclosures, coastal HVAC installations, and wet plumbing service areas.
Designed as a standard 1/4-20 UNC hex socket cap screw suitable for use with any application or assembly specifying that thread size and a 3/4-inch under-head length.
Install using a 3/16-inch hex key or socket driver; ensure the drive tool is fully seated before applying torque to avoid rounding the socket. De-energize and depressurize any equipment before accessing fastener locations on live systems. Follow applicable code requirements, including NEC or IPC guidelines, when fastening electrical or plumbing components. Inspect thread engagement and surface condition before installation in corrosive environments.
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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