If you specifically need round-head lag bolts, none of the products listed here has a round head; all five are hex-head lag screws. These options may work if a hex head is acceptable and you need a wood fastener with a washer. The 304 stainless steel sets suit buyers prioritizing corrosion resistance, while the galvanized set offers a larger 1/2-inch diameter and a 50-piece count. Check head style, dimensions, material, and washer details before ordering.
| Product | Best For | Key Details |
|---|---|---|
| EASTPUK 5/16″ x 2-1/2″ | Medium-size wood connections | 12 sets, 304 stainless steel, washers |
| MYWISH 1/4″ x 2″ | Furniture and woodworking | 20 sets, 304 stainless steel, washers |
| Tandefio 1/2″ x 3″ | Larger fastening jobs | 50 screws and washers, galvanized with Ruspert coating |
| MossGrip 1/4″ x 3″ | Longer reach in wood | 15 sets, black zinc-plated steel |
| Unbranded 1/4″ x 3″ | Buyers needing installation tools | 15 screws, washers, drill bits, and sockets |
EASTPUK 5/16-Inch Stainless Lag Bolts
This set includes 12 hex-head lag bolts measuring 5/16 inch in diameter and 2-1/2 inches long, along with washers. The listed material is 18-8 (304) stainless steel, and the product description identifies deck building and joining timber as possible uses. Its wrench size is listed as 1/2 inch.
Best for: Buyers who need a mid-size fastener and want stainless steel for wood projects. It was selected for its stated dimensions, included washers, and 304 stainless construction. Limitation: It has a hex head, not a round head, and its 5/16-inch diameter may not suit projects specified for another size.
MYWISH 1/4-Inch Furniture Lag Bolts
The package contains 20 1/4-inch by 2-inch hex-head lag bolts and 20 flat washers. MYWISH lists 304 stainless steel and describes uses such as furniture assembly, woodworking, workbenches, timber framing, and outdoor fixture mounting.
Best for: Furniture builders and woodworkers seeking a smaller-diameter bolt set with matching washers. It was chosen for its 20-piece quantity and stated 304 steel material. Limitation: The 2-inch length may be too short for a connection that requires longer fasteners, and the head style is hex rather than round.
Tandefio 1/2-Inch Galvanized Lag Bolts
This bulk set includes 50 lag screws and 50 washers. Each bolt is listed at about 1/2 inch in diameter and 3 inches long. The product description specifies hot-dip galvanizing with a Ruspert coating and recommends guide holes to make installation easier.
Best for: Larger wood fastening jobs where the specified size is 1/2 inch by 3 inches and a higher piece count is useful. It stands out for its stated coating and included washers. Limitation: The large diameter and length are not appropriate for every project; confirm the required dimensions and head style before choosing it.
MossGrip 1/4-Inch by 3-Inch Lag Screws
MossGrip lists 15 sets of 1/4-inch by 3-inch hex-head lag screws with washers. The fasteners are described as steel with a black zinc coating. The product information mentions fence, furniture, and wood construction applications, including decks and storage projects.
Best for: Buyers who need a 3-inch fastener in a 1/4-inch diameter and prefer a black finish. It was selected as a longer option than the MYWISH 2-inch bolts. Limitation: The listed coating is black zinc, not 304 stainless steel; choose according to project conditions and required material.
304 Stainless Lag Bolts With Installation Tools
This package includes 15 1/4-inch by 3-inch 304 stainless steel hex-head lag screws, 15 half-inch flat washers, and matching drill bits and sockets, according to the listing. The product description also identifies a sharp tip and clear threads.
Best for: Buyers who want a longer stainless steel bolt and listed installation accessories in one package. It was selected for the included tools and 3-inch length. Limitation: The listing does not name a brand, and the head is hex rather than round. Verify that the included accessories match your planned installation.
Buying Guide: How to Choose Lag Bolts
Do you need a round head or a hex head?
Confirm the required head style before comparing other features. These five options all have hex heads. A hex head is tightened with a wrench or socket, while a round-head fastener has a different profile and may require a different tool or provide a different appearance. If the plans call for a round head, look for that exact specification rather than substituting one of these products.
Which diameter and length should you choose?
Match the bolt dimensions to the project specification. The options here range from 1/4-inch to 1/2-inch diameters and from 2 to 3 inches long. Do not assume that a longer or thicker bolt is automatically better: the right size depends on the wood pieces and the connection design. The product descriptions recommend guide holes for the Tandefio set; follow appropriate installation guidance for your project.
Does material and coating matter?
Choose based on the environment and the material specified for the job. EASTPUK, MYWISH, and the unbranded set list 304 stainless steel. Tandefio lists hot-dip galvanizing with a Ruspert coating, while MossGrip lists black zinc-plated steel. These descriptions identify different materials or finishes, but do not establish that one is suitable for every exposure or application.
Are washers and tools included?
Check the package contents instead of assuming accessories are included. Each product described here includes washers. The unbranded set also lists drill bits and sockets; the other listings do not specify those tools. Compare the piece count with the number of connections you need, and confirm washer dimensions where a project requires a particular fit.
Frequently Asked Questions
Are any of these products round-head lag bolts?
No. The listed products are hex-head lag bolts or lag screws. Choose another product if a round head is required.
What is the difference between a lag bolt and a lag screw?
Product listings often use the terms interchangeably for heavy-duty threaded fasteners intended for wood. Check the actual head, dimensions, material, and installation requirements rather than relying on the name alone.
Which option has the largest diameter?
The Tandefio product is listed at about 1/2 inch in diameter, larger than the 1/4-inch and 5/16-inch options.
Which products list 304 stainless steel?
EASTPUK, MYWISH, and the unbranded 1/4-inch by 3-inch set list 304 stainless steel. Compare the stated dimensions and package contents as well as material.
Should I use a guide hole?
The Tandefio listing recommends using guide holes to make installation easier. Follow project-specific instructions and choose a hole size appropriate for the fastener and wood.