Value Collection 64671 5/16 Hex Lag Screw 3in Ss 18-8 50pk

Product Description

The VALUE COLLECTION 64671 is a 5/16-inch hex head lag screw intended for structural fastening applications in trade and light commercial work. Manufactured from Grade 18-8 stainless steel with an uncoated finish, this lag screw delivers corrosion resistance suitable for outdoor, damp, and coastal environments. The 3-inch length under head provides solid bite in wood framing, decking, and equipment mounting scenarios. Each package contains 50 screws, making it practical for job-lot purchasing and on-truck inventory. Electricians, plumbers, and HVAC techs commonly use hex head lag screws to anchor equipment supports, brackets, and strut to wood structural members.

This lag screw is used wherever a hex-drive fastener is needed to attach hardware to wood substrates in residential or light commercial settings. Typical applications include securing pipe hangers, equipment pads, conduit straps, and mechanical system supports to wood joists or framing. The hex head allows installation with a standard socket or wrench, and the 5/16-inch diameter is a common size across mechanical trade fastener requirements.

Key Features

• Grade 18-8 stainless steel construction for corrosion resistance in wet and outdoor environments
• Uncoated finish — no coating to chip, flake, or react with treated lumber
• 5/16-inch diameter with 3-inch length under head for solid structural engagement
• Hex head drive compatible with standard sockets and wrenches
• 50-screw pack quantity suitable for job-lot stocking

Compatibility

Designed as a standard 5/16-inch hex head lag screw for general fastening into wood structural members across mechanical, electrical, and plumbing trade applications.

Installation Notes

Lag screws of this diameter typically require a pilot hole to prevent wood splitting and to ease installation — consult applicable building code or fastener manufacturer guidance for pilot hole sizing. Use a properly sized socket or hex wrench to drive the fastener; avoid over-torquing, which can strip the head or crack the substrate. Stainless steel fasteners should not be mixed with dissimilar metals in direct contact to avoid galvanic corrosion. No power shutdown is required for fastener installation, but ensure the work area is clear of concealed utilities before drilling pilot holes.