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The HILLMAN FASTENERS 230107 is a zinc-plated hex head lag bolt sized at 3/8 inch diameter by 6 inches in length, sold in a 50-count pack. Lag bolts are heavy-duty wood screws with a hex head driven by a wrench or socket, designed to fasten structural components where high pull-out resistance is required. The zinc plating provides basic corrosion resistance for dry and semi-exposed interior applications. This fastener is a standard trade-supply item stocked by electricians, HVAC installers, plumbers, and general contractors for equipment mounting, structural framing, and bracket attachment tasks.
This lag bolt is suited for residential and light commercial construction and maintenance applications. Common uses include securing equipment mounting brackets to wood framing, attaching structural lumber, fastening ledger boards, and anchoring support straps or hangers. The 6-inch length provides sufficient thread engagement in dimensional lumber and engineered wood substrates. The hex head design allows installation with standard hand tools or impact drivers equipped with a socket attachment.
Designed as a standard 3/8 inch hex head lag bolt for use in wood framing, structural lumber, and engineered wood applications common to HVAC, plumbing, electrical, and general construction installations.
Lag bolts of this diameter typically require a pilot hole to prevent wood splitting and to ease installation — consult applicable building codes or fastener manufacturer guidelines for recommended pilot hole sizing. Drive with a properly sized socket wrench or impact driver; avoid overdriving, which can strip the wood threads and reduce pull-out strength. For structural applications, refer to IBC or IRC fastener schedule requirements to confirm appropriate fastener size and spacing.
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