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The VALUE COLLECTION R63034322 is a 4-40 x 1/2 inch oval head machine screw designed for general-purpose fastening applications where a low-profile, finished appearance is required. Made from grade 18-8 stainless steel with a bright, uncoated finish, this screw offers corrosion resistance suitable for both indoor and light outdoor environments. The slotted drive accepts a standard flat-blade screwdriver, making installation straightforward with common hand tools. The overall length is 1/2 inch, measured from the top of the head to the tip, consistent with standard inch-system fastener measurement conventions. Machinists, maintenance technicians, electricians, and HVAC service pros use this type of fastener in panel assembly, equipment enclosures, and control box work.
This screw is suited for light-gauge metal, plastic, and composite assemblies where a 4-40 UNC thread is specified. The oval head style sits slightly above the mating surface with a countersunk underside, providing a clean, finished look on visible fastening points. Typical applications include electronic enclosures, instrument panels, junction boxes, and HVAC control cabinet assembly. Sold in multiples of 100 per minimum order, this fastener is appropriate for production assembly, field service kits, and maintenance stock.
Designed as an OEM-style replacement or stock fastener for any application requiring a 4-40 UNC thread, 1/2 inch overall length, oval head, slotted drive machine screw in stainless steel.
Install using a flat-blade screwdriver sized to the slotted head to avoid cam-out and head damage. Ensure the mating thread is tapped to 4-40 UNC specification before driving the screw. De-energize any electrical or control panel equipment before accessing fasteners in live enclosures, in accordance with applicable lockout/tagout procedures. Avoid over-torquing into thin or soft materials to prevent thread stripping.
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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