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SKU: LBHDG-516X6
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5/16" x 6" Conquest Hex Head Lag Bolt for Wood - Hot Dip Galvanized

Regular price $119
Ships Nov 12 when you order now

Description

5/16" x 6" Conquest Hex Head Lag Bolt for Wood - Hot Dip Galvanized

The 5/16" x 6" Conquest Lag Bolt is designed for deep wood fastening in outdoor builds that require high strength and long-term weather resistance. Its hot dip galvanized coating shields it from rust and corrosion, while coarse 9 TPI threading ensures it drives deep and holds tight even in treated lumber.

5/16" x 6" Conquest Hex Head Lag Bolt – Long Galvanized Bolt for Structural Outdoor Wood Applications

Ideal for large frame connections, deep posts, and heavy-duty projects, this lag bolt offers the reach, grip, and corrosion resistance needed for long-lasting outdoor construction.

Key Features

  • 6" Length: Deep fastening capacity for large timber or multi-board joints.
  • Hot Dip Galvanized: Excellent protection in wet, humid, or treated environments.
  • Hex Head: Fast, reliable installation with impact or socket tools.
  • 9 TPI Threads: Provides strong hold and pull-out resistance.

Common Applications

  • Deck support beams
  • Large fence or gate posts
  • Pergola and arbor framing
  • Outdoor structure connections
  • Garden wall builds

Installation Tips

  • Drill a pilot hole to the full depth for smooth installation.
  • Drive carefully to prevent twisting or stripping.
  • Seat flush to distribute force evenly across surfaces.

California Residents: WARNING

Specifications

Diameter: 5/16"
Length: 6"
Thread Length: 3-1/2"
Thread Type: Coarse
Threads Per Inch: 9
Socket Size: 1/2"
Head Type: Hex Head
Material: Carbon Steel
Finish: Hot Dip Galvanized
Measuring System: Standard SAE
Manufacturer Name: Conquest Fasteners
Quantity: 1

Reviews
(27)

Customer Reviews

Based on 27 reviews
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(27)
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C
Carl
16" Lag Screw

Got some hard to find 16" lag screws and it was very quickly received when I needed them fast. The price was decent too.

C
Cari Dodson
Received on time!

Ordered these late, and under pressure, but received on time! Note that you need a 3/4 socket and it's not typical in most sets.

M
Michelle

This item worked well for its intended purpose of mounting and securing a wood mantle.

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