Hillman Fasteners 230039 Hex Head Lag Bolt 5/16x1 in Zinc 100pk

Product Description

The HILLMAN FASTENERS 230039 is a zinc-plated hex head lag bolt designed for structural and general fastening applications in wood. Sized at 5/16 inch in diameter by 1 inch in length, this bolt provides reliable holding strength in light-duty to medium-duty connections. The hex head accepts a standard socket or wrench for efficient installation. Sold in a box of 100, this part is well-suited for contractors, carpenters, and trade professionals who need a consistent supply of lag bolts on the job site. The zinc finish provides basic corrosion resistance for interior and sheltered exterior use.

This lag bolt is commonly used in residential and light commercial construction for securing framing members, ledger boards, decking components, and hardware to wood substrates. The 5/16 x 1 inch size fits applications where a compact lag fastener is required without the bulk of larger structural bolts. The 100-count package is practical for production work or restocking site inventory.

Key Features

• 5/16 inch diameter by 1 inch length for compact structural fastening
• Zinc plating provides corrosion resistance for interior and sheltered use
• Hex head design accepts standard socket wrench or hex driver
• 100-count box quantity reduces reorder frequency on active job sites
• Consistent dimensional tolerancing for reliable torque and seating

Compatibility

Designed as a standard 5/16 x 1 inch hex head lag bolt suitable for wood-to-wood and hardware-to-wood fastening applications where this bolt size and head style are specified.

Installation Notes

Lag bolts of this size are typically installed by carpenters, general contractors, or trade professionals using a socket wrench or impact driver with the appropriate hex socket. Always drill a pilot hole of the correct diameter to prevent splitting the wood substrate and to allow proper thread engagement. Follow applicable building codes, including IBC or IRC guidelines, for structural fastening requirements. Do not overtighten, as excessive torque can strip the wood substrate or shear the fastener head.