5/16" Galvanized Hex Lag Bolts

5/16" Galvanized Hex Lag Bolts

These 5/16" galvanized hex lag bolts (lag screws) are hot dip galvanized for treated lumber and outdoor use. The gimlet point starts easily in a pilot hole, and the hex head drives with a 1/2" wrench or socket. We stock lengths from 1" to 6". Use a 5/16" galvanized flat washer under the head.

Specifications

• Diameter: 5/16"
• Type: hex head lag screw, gimlet point
• Finish: hot dip galvanized
• Lengths: 1" to 6"
• Wrench / socket size: 1/2"

Common Uses

• Railings and light framing
• Brackets and ledger strips
• Outdoor furniture and planters

FAQ

What socket fits a 5/16" lag bolt?
A 1/2" socket or wrench.

How deep should a 5/16" lag bolt go into the wood?
Get as much thread into the main member as you can. A common rule is thread penetration of at least 8 times the diameter for full strength. Check your local code or engineer for structural connections.

Related: All Galvanized Hex Lag Bolts | Galvanized USS Flat Washers

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