1/2 x 12 Zinc Hex Lag Screw

Description

1/2 x 12 Zinc Hex Lag Screw is a standard-duty fastener with a zinc plating finish, ideal for indoor and dry-environment wood fastening applications where basic corrosion protection is needed.

Also known as a “zinc hex lag bolt” or “zinc lag bolt,” hex lag screws have a flat bearing surface, a hexagonal head, and a fully threaded or partially threaded shank with coarse, wood-gripping threads and a pointed tip. Their six-sided head allows for easy tightening with standard wrenches and sockets, making them a practical choice for general-purpose structural wood fastening.

Zinc

• Zinc hex lag screws offer basic corrosion resistance suitable for indoor or dry environments
• The zinc coating provides a clean appearance and protects against mild moisture exposure

1/2 x 12 Zinc Hex Lag Screw Features

• High torque capacity due to the six-sided head, allowing use with wrenches, ratchets, and impact drivers
• Coarse, aggressive thread pattern designed to bite into wood fibers for a strong, secure hold
• Pointed tip allows for easier starting and driving without the need for a pre-tapped hole

Common Uses

• General indoor wood-to-wood and wood-to-metal fastening in structural applications
• Interior timber framing, shelving, and non-exposed construction applications
• Attaching ledger boards, posts, and beams in dry or covered residential construction

Application

• Always pre-drill a pilot hole to prevent wood splitting and ease installation
• Use a wrench, socket, or impact driver sized to the hex head
• Do not require a nut — threads bite directly into the wood substrate for holding power

Tips

• Always use a washer under the head to distribute load and prevent the head from digging into the wood surface
• Hex lag screws are measured from directly under the head to the tip of the shank
• Not recommended for outdoor, high-moisture, or pressure-treated lumber applications — consider HDG or SS 18-8 for those environments