Value Collection HXLI20621800G Hex Head Lag Screw 5/8 in

Product Description

The VALUE COLLECTION HXLI20621800G is a hex head lag screw built for heavy-duty fastening applications where strength and corrosion resistance are both required. This screw measures 5/8 inches in diameter with an 18-inch length under the head, making it well-suited for deep-penetration structural connections. Constructed from Grade 2 steel with a hot-dipped galvanized finish, it delivers solid holding power in exposed or moisture-prone environments. Licensed tradespeople working on structural framing, decking, ledger attachments, and equipment mounting will find this fastener appropriate for demanding load-bearing tasks.

This lag screw is used in residential and commercial construction and trade applications where a large-diameter, long-shank fastener is needed. Typical scenarios include attaching structural lumber, securing heavy timber framing, anchoring ledger boards to rim joists, and mounting heavy mechanical equipment supports to wood substrates. The hot-dipped galvanized finish makes it suitable for outdoor and treated-lumber applications where bare steel fasteners would corrode prematurely.

Key Features

• 5/8-inch diameter for high shear and withdrawal load capacity
• 18-inch length under head for deep structural penetration
• Hot-dipped galvanized finish provides corrosion resistance in exterior and treated-lumber environments
• Hex head design accepts standard wrenches and impact drivers with hex socket attachments
• Grade 2 steel construction balances strength and ductility for structural fastening

Compatibility

Designed as a standard hex head lag screw for use in wood-to-wood and metal-to-wood structural fastening applications requiring a 5/8-inch diameter fastener with an 18-inch shank.

Installation Notes

Installation should be performed by a qualified carpenter, framing contractor, or licensed tradesperson following applicable building codes. Always pre-drill a pilot hole sized appropriately for the shank and thread diameter to prevent wood splitting and allow proper seating. Use a calibrated torque wrench or impact driver with a hex socket to drive the fastener — do not over-drive, as this can damage the wood substrate or strip the fastener head. Follow IRC, IBC, or applicable local structural codes when using lag screws in load-bearing assemblies.