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The VALUE COLLECTION 782126PS is a 5/16-inch hex head lag screw with a 3-inch length under head, manufactured from grade 18-8 stainless steel with an uncoated finish. Lag screws of this type are heavy-duty fasteners used to secure structural connections where high pull-out resistance and corrosion resistance are required. The 18-8 stainless steel construction provides reliable performance in wet or corrosive environments. Installed by carpenters, plumbers, electricians, and HVAC technicians for equipment mounting, structural anchoring, and bracket attachment, this screw is a standard trade fastener for both indoor and outdoor applications.
This lag screw is suited for residential and light commercial applications where a corrosion-resistant, hex-drive fastener is needed. Typical use cases include mounting HVAC equipment to wood framing, securing plumbing brackets, attaching electrical enclosures to wood substrates, and general structural fastening tasks. The hex head allows for wrench or socket-drive installation, making it practical for tight spaces where a screwdriver-style drive is inefficient. The uncoated stainless finish makes it compatible with pressure-treated lumber without the galvanic concerns associated with zinc-plated alternatives.
Designed as a standard 5/16-inch hex head lag screw suitable for wood-to-wood and hardware-to-wood fastening applications across HVAC, plumbing, electrical, and general construction trades.
Lag screws of this size typically require a pilot hole to prevent splitting of the substrate material — consult applicable building codes for pilot hole sizing requirements. Use an appropriately sized socket or wrench to drive the fastener; do not overtighten, as this can strip the substrate or compromise the connection. Always confirm material compatibility when fastening into pressure-treated lumber or dissimilar metals. Installation should comply with applicable local building and mechanical codes.
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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