SEARCH
CATEGORIES

High-Quality Lag Bolts and Lag Screws


High-Quality Lag Bolts & Lag Screws | U-Bolt-It

What is a Lag Bolt?

A lag bolt (also commonly referred to as a lag screw) is a heavy-duty industrial fastener specifically designed for fastening into wood. Featuring a sturdy hex head and coarse, deeply cut threads, they provide maximum gripping power and pull-out resistance when driven into timber, ensuring a robust and long-lasting structural hold.

Common Construction Applications

Because of their exceptional holding strength, lag screws are heavily relied upon to bear intense loads in heavy lumber and timber assemblies. They are commonly used to secure wooden posts and beams, as well as for various household and commercial construction projects. Common applications include:

  • Securing heavy wooden posts, beams, and timber framing
  • Attaching wood structures to masonry or concrete (when paired with a lag shield anchor)
  • Building outdoor decks, boardwalks, and retaining walls
  • General household and commercial heavy wood construction

Available Materials and Manufacturing

To accommodate both indoor applications and severe outdoor environments, U-Bolt-It supplies these heavy-duty fasteners in a wide variety of premium materials. We offer highly corrosion-resistant options, such as stainless steel and hot-dipped galvanized steel, to ensure your wood construction projects remain structurally sound and protected against the elements for years to come.

Request a Quote Today

Have a question about our manufactured lag bolts? Contact our team directly by phone or by using our secure online form to submit your project details. You can also give us a call today to speak directly with our fastener specialists. We look forward to speaking with you!

Types of Lag Bolts & Lag Screws


Filter By:
SKU NAME DIAMETER LENGTH DETAILS
SLAGSS0310300 5/16 X 3 18-8 STAINLESS STEEL HEX LAG SCREW 5/16 3
SLAGA0310700 5/16 X 7 Galvanized Carbon Steel Hex Lag Screws 5/16 7
SLAGA0310600 5/16 X 6 Galvanized Carbon Steel Hex Lag Screws 5/16 6
SLAGA0310500 5/16 X 5 Galvanized Carbon Steel Hex Lag Screws 5/16 5
SLAGA0310450 5/16 X 4 1/2 Galvanized Carbon Steel Hex Lag Screws 5/16 4 1/2
SLAGA0310400 5/16 X 4 Galvanized Carbon Steel Hex Lag Screws 5/16 4
SLAGA0310350 5/16 X 3 1/2 Galvanized Carbon Steel Hex Lag Screws 5/16 3 1/2
SLAGA0310300 5/16 X 3 Galvanized Carbon Steel Hex Lag Screws 5/16 3
SLAGA0310250 5/16 X 2 1/2 Galvanized Carbon Steel Hex Lag Screws 5/16 2 1/2
SLAGA0310200 5/16 X 2 Galvanized Carbon Steel Hex Lag Screws 5/16 2
SLAGA0310175 5/16 X 1 3/4 Galvanized Carbon Steel Hex Lag Screws 5/16 1 3/4
SLAGA0310150 5/16 X 1 1/2 Galvanized Carbon Steel Hex Lag Screws 5/16 1 1/2
SLAGA0310125 5/16 X 1 1/4 Galvanized Carbon Steel Hex Lag Screws 5/16 1 1/4
SLAGA0310100 5/16 X 1 Galvanized Carbon Steel Hex Lag Screws 5/16 1
SLAGA0620200 5/8 X 2 Galvanized Carbon Steel Hex Lag Screws 5/8 2
SLAGSS0620200 5/8 X 2 18-8 STAINLESS STEEL HEX LAG SCREW 5/8 2
SLAGSS0620250 5/8 X 2 1/2 18-8 STAINLESS STELL HEX LAG SCREW 5/8 2 1/2
SLAGSS0620300 5/8 X 3 18-8 STAINLESS STEEL HEX LAG SCREW 5/8 3
SLAGSS0620350 5/8 X 3 1/2 18-8 STAINLESS STELL HEX LAG SCREW 5/8 3 1/2
SLAGSS0620400 5/8 X 4 18-8 STAINLESS STEEL HEX LAG SCREW 5/8 4
SLAGSS0620450 5/8 X 4 1/2 18-8 STAINLESS STELL HEX LAG SCREW 5/8 4 1/2
SLAG0620800 5/8 X 8 Zinc Plated Carbon Steel Hex Lag Screws 5/8 8
SLAG0620700 5/5 X 7 Zinc Plated Carbon Steel Hex Lag Screws 5/8 7
SLAG0620600 5/8 X 6 Zinc Plated Carbon Steel Hex Lag Screws 5/8 6
SLAG0620500 5/8 X 5 Zinc Plated Carbon Steel Hex Lag Screws 5/8 5
SLAG0620450 5/8 X 4 1/2 Zinc Plated Carbon Steel Hex Lag Screws 5/8 4 1/2
SLAG0620400 5/8 X 4 Zinc Plated Carbon Steel Hex Lag Screws 5/8 4
SLAG0620350 5/8 X 3 1/2 Zinc Plated Carbon Steel Hex Lag Screws 5/8 3 1/2
SLAG0620300 5/8 X 3 Zinc Plated Carbon Steel Hex Lag Screws 5/8 3
SLAG0620250 5/8 X 2 1/2 Zinc Plated Carbon Steel Hex Lag Screws 5/8 2 1/2
SLAG0620200 5/8 X 2 Zinc Plated Carbon Steel Hex Lag Screws 5/8 2
SLAGSS0620500 5/8 X 5 18-8 STAINLESS STEEL HEX LAG SCREW 5/8 5
SLAGSS0620600 5/8 X 6 18-8 STAINLESS STELL HEX LAG SCREW 5/8 6
SLAGSS0620700 5/5 X 7 18-8 STAINLESS STEEL HEX LAG SCREW 5/8 7
SLAGSS0620800 5/8 X 8 18-8 STAINLESS STELL HEX LAG SCREW 5/8 8
SLAGSS0620850 5/8 X 8 1/2 18-8 STAINLESS STEEL HEX LAG SCREW 5/8 8 1/2
SLAGSS0620900 5/8 X 9 18-8 STAINLESS STELL HEX LAG SCREW 5/8 9
SLAGSS0621000 5/8 X 10 18-8 STAINLESS STEEL HEX LAG SCREW 5/8 10
SLAGSS0621200 5/8 X 12 18-8 STAINLESS STELL HEX LAG SCREW 5/8 12
SLAGSS0621400 5/8 X 14 18-8 STAINLESS STEEL HEX LAG SCREW 5/8 14
SLAGSS0621600 5/8 X 16 18-8 STAINLESS STELL HEX LAG SCREW 5/8 16
SLAGSS0621800 5/8 X 18 18-8 STAINLESS STEEL HEX LAG SCREW 5/8 18
SLAGSS0622000 5/8 X 20 18-8 STAINLESS STELL HEX LAG SCREW 5/8 20
SLAG0310175 5/16 X 1 3/4 Zinc Plated Carbon Steel Hex Lag Screws 5/16 1 3/4
SLAGSS0310600 5/16 X 6 18-8 STAINLESS STELL HEX LAG SCREW 5/16 6
SLAGSS0310700 5/16 X 7 18-8 STAINLESS STEEL HEX LAG SCREW 5/16 7
SLAG0310100 5/16 X 1 Zinc Plated Carbon Steel Hex Lag Screws 5/16 1
SLAG0310125 5/16 X 1 1/4 Zinc Plated Carbon Steel Hex Lag Screws 5/16 1 1/4
SLAG0310150 5/16 X 1 1/2 Zinc Plated Carbon Steel Hex Lag Screws 5/16 1 1/2
SLAG0310250 5/16 X 2 1/2 Zinc Plated Carbon Steel Hex Lag Screws 5/16 2 1/2