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The VALUE COLLECTION R8-32X1/4 is a pan head, Phillips drive, self-sealing machine screw designed for fastening applications that require a built-in seal against fluid or gas intrusion. The screw features an 8-32 UNC thread with a 1/4 inch length under the head and is manufactured from 18-8 stainless steel with a bright, uncoated finish. A silicone O-ring is integrated under the head to create a compression seal against the mating surface when the fastener is driven to seat. Sold in packages of 10, these screws are used by HVAC technicians, plumbers, electricians, and general trade professionals who need a reliable, corrosion-resistant fastener with sealing capability in a compact form factor.
This self-sealing machine screw is suited for light-duty panel fastening, equipment enclosures, and any application where a standard machine screw would otherwise allow moisture, dust, or fluid to pass through the fastened joint. The 8-32 UNC thread pattern is a common size found across control panels, electrical enclosures, HVAC cabinet assemblies, and general sheet metal fabrication. The silicone O-ring makes it appropriate for outdoor enclosures, wet locations, or any sealed housing where water ingress through fastener holes is a concern.
Designed as an OEM-style replacement or stock fastener for any assembly using 8-32 UNC tapped holes that require a sealing machine screw with a pan head profile.
Installation is performed with a No. 2 Phillips screwdriver or matching power-driver bit. De-energize all electrical equipment and shut off any pressurized systems before replacing fasteners on live enclosures or pressurized housings. Drive the screw until the O-ring is visibly compressed against the mating surface — do not overtighten, as excessive torque can extrude or damage the silicone O-ring and compromise the seal. Follow applicable NEC or equipment manufacturer guidelines when fastening electrical enclosure panels.
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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