Nuts and Bolts Inc, in Omaha, NE
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ASME B18.2.1 Lag Screw by Material, Finish and Size
Lag Screws, are sometimes incorrectly called Lag Bolts. They usually have a square or hexagonal head and a wood screw-style thread with a point. Because of their larger diameter, they usually require a pre-drilled hole. They are usually much larger diameter than wood screws, and are used to connect wood or like materials that need to bear a heavy load. In the U.K., Lag Screws are known as Coach Screws.
Search thousands of US/Imperial fasteners by ASME specification, including ASME b18.2.1 Lag Screws, in the FCH Sourcing Network database of first-run, surplus, odd lot, slow-moving and hard to find fasteners.
Lag screws are heavy-duty screws used in woodworking applications. They are designed to support much heavier loads than wood screws or construction screws. They have coarse threads and tapered points that allow them to support a lot of torque. Lag screws can be installed using a wrench or nut driver. The name is misused occasionally these days to refer to square drive wafer head deck screws.
Common applications of Lag Screws are:
- • Lumber
- • Heavy Duty Construction
- • Wooden Playground Equipment
- • Bridges
- • Railroads
ASME b18.2.1 Lag Screws by Imperial/ Sizes
Lag Screws are available on the FCH Network with imperial diameters that range from 1/4 to 1/2, and with lengths that range from 1/2 to 6.
Shop All ASME b18.2.1 Lag Screws
ASME b18.2.1 Lag Screws by Materials
ASME b18.2.1 Lag Screws are available on the FCH Network in materials that range from 300 Stainless (A1,A2, 18-8,304,310 etc.) to 316, 317, A4 Stainless.
ASME b18.2.1 Lag Screws by Coatings/Finishes
ASME b18.2.1 Lag Screws are available on the FCH Network in finishes or coatings that range from Plain to Plain.