The 6 Best 3 Inch Lag Bolts (2023 reviews)

Not everyone likes to purchase bolt for their daily usage, but the primeline 3 inch lag bolt would be an anomoly. This is designed to cut into wood. It features deep wood screw threads and does not accept a nut. It can be used in place of standard wood screws whenever the mounting surface must bear a heavy load. It is allows for lag screws to be tightened with more torque than can be used on phillips head screws, though a pilot hole is still required prior to installation.

These are ideal for use on decks since installation can be accomplished without having access to both ends of the fastener, as opposed to standard hex bolts that require a nut on the opposite end. It is used for load bearing.

Why We Like This:

Requires pilot hole to be drilled and installs using wrench or socket tool
Heavy duty wood screw with 6 sided hex bolt head
One of the new comers and featured product

Best With Washer: Eastlo 3 Inch Lag Bolt

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Not everyone likes to purchase bolt for their regular usage, but the eastlo 3 inch lag bolt would be an anomoly. Hex head lag screws are coarse thread screws requiring a pre-drilled hole with minimal clearance above the fastener to prevent splitting or snappin. It is made of 304 stainless steel (no coating outside) which is superior to regular steel and any zinc plated fasteners, providing good strength and corrosion resistance in bad environments. It is used for securing wood in heavy duty applications like deck building that standard wood screws cannot support the load.

The high quality 304 stainless steel provides perfect strength and good corrosion resistance in bad environments. It is ideal for easy and quick installation with a hex drive and can tighten with more torque than phillips head machine screws. They're often combined with washer to evenly distribute the pressure of the head as well as preventing pull through or snappin. It is for masonry application, use the screw in conjunction with a lag shield.

Why We Like This:

Common applications include retaining walls, deck frames, and outdoor play equipment
Good brand reputation

Best For fence: Vigrue 3 Inch Lag Bolt

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The vigrue 3 inch lag bolt is suitable and reliable and fits well with your daily usage. These wood bolt screws are ideal for securing wood in heavy duty applications that standard wood screws cannot support the load. This is a really nice kit of 1/4" stainless lag bolts. It features deep wood screw coarse threads for superior holding and prevent stripping in the material.

This item gives you a nice selection of 1/4" diameter lag bolts in a variety of lengths. There are some ridged areas arranged in a sort of spiral in the middle. These are often used with a washer which distribute the pressure of the head evenly so that to prevent pull through. It is suitable for industrial, exterior and household applications, like deck building or joining lumber. This set is perfect if you might have an occasional need for the odd size of lag bolts.

Why We Like This:

All are stainless steel so they are usable for outdoor or marine environments
Come in 5 different lengths from 1 inch to 3 inches and washers
Very useful for setting stair base plates

Best For outdoor fence hinges: Foliv 3 Inch Lag Bolt

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Foliv has been making great bolt for years, thanks to a combination of clever design and appropriate materials. It's nice to have a selection of fasteners in the garage when something gets lost or is needed on a project. These lag bolt screws are great for exterior household securing wood works, decks building, industrial, joining lumber and diy design. It comes in a sturdy plastic case that closes tightly. The screws are well made, with clean threads.

This is a nice little set of bolts with several different lengths and a handful of included washers. It is great for outdoor fence hinges and locks. The contains is the translucent, softer plastic that can be adjusted.

Why We Like This:

Points are sharp enough to self tap into pressure treated and hardwood
Nice selection of lag bolts to have on hand
Very good material if you need to use for outdoor projects
Nice selection of small, light duty lag bolts

Best With Shield: Raw products Corp 3 Inch Lag Bolt

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Not everyone likes to purchase bolt for their regular usage, but the raw products corp 3 inch lag bolt would be an anomoly. The Hex Head Lag Screws in this selection are made of 316 stainless steel. They feature the sharp cutting threads of a wood screw or sheet metal screw and have a shoulder below the head (in longer lengths), however everything is scaled up in size for use in larger applications.

The Lag bolts feature a hex head and are designed to be driven with a wrench or hex driver. It can also be used with lag shield masonry anchors to anchor fixtures to concrete and other masonry materials. It is valued for its high corrosion and rust resistance when exposed to salt water moisture and the elements for a long lasting application.

It can be used in heavy duty carpentry applications including lumber framing and anchoring equipment to wood such as machinery and large vices.

Why We Like This:

Features the sharp cutting threads of a wood screw
Feature the sharp cutting threads for excellent retention in wood and other soft materials
Significantly larger than most other wood screws
Highly corrosion and rust resistant 316 stainless steel

Best With anchor: Roycemart 3 Inch Lag Bolt

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Compared with other bolt in this category, the roycemart 3 inch lag bolt has a convenient design. The lag screws are heavy-duty fasteners. They are driven by a wrench and are mainly used for fastening to masonry or wooden frames. It can be used in applications where standard wood screws can't support the load, like deck buildings, gazebos, trusses and other wood connections.

These are manufactured under tight tolerance, ensuring precision and uniformity in production. It is suitable for indoor & outdoor uses.

Why We Like This:

Good brand reputation
Good investment for long term