Stewart Fastener J3132SLZ Zinc Hex Lag Bolts 5/16x2in Jar 50

Product Description

The STEWART FASTENER J3132SLZ is a jar of 50 zinc-plated hex head lag bolts sized 5/16 inch in diameter by 2 inches in length. Lag bolts are heavy-duty wood fasteners designed to draw together structural members or anchor hardware to wood substrates. The hex head drive allows installation with a standard socket wrench or impact driver. The zinc plating provides baseline corrosion resistance suitable for interior and protected exterior applications. Each jar contains 50 bolts, sold as a single jar unit.

These lag bolts are suited for general construction, framing, and structural fastening tasks where a 5/16 x 2 inch lag is specified. Typical applications include securing ledger boards, attaching brackets and hangers, mounting equipment to wood framing, and similar structural or mechanical connections. The zinc finish makes them a practical choice for dry or low-moisture environments. Trade professionals in HVAC, plumbing, electrical, and general construction regularly use lag bolts of this size for equipment mounting and structural anchoring.

Key Features

• 5/16 inch diameter by 2 inch length lag bolt — a common structural fastener size
• Zinc-plated finish for corrosion resistance in interior and protected exterior use
• Hex head drive compatible with standard sockets and impact drivers
• 50 bolts per jar, sold per jar for convenient jobsite quantity

Compatibility

Designed as a general-purpose 5/16 x 2 inch zinc hex lag bolt suitable for wood-to-wood and hardware-to-wood fastening applications in residential and light commercial construction.

Installation Notes

Lag bolts of this size are typically installed by contractors, tradespeople, or experienced DIYers using a socket wrench or impact driver. A pilot hole should be drilled prior to installation to prevent wood splitting and to ensure proper seating of the bolt. Follow applicable building codes for structural connections, including IRC and IBC requirements where applicable. Do not use zinc-plated fasteners in contact with pressure-treated lumber rated for ground contact or in continuously wet environments where stainless or hot-dipped galvanized fasteners are required.

Technical Specifications

• Diameter: 5/16 inches
• Length: 2 inches
• Drive Type: Hex Head
• Finish: Zinc Plated
• Quantity per Jar: 50
• UPC: 662352098809

Standard Information

• Brand: STEWART FASTENER
• Manufacturer Part Number: J3132SLZ