Lag Screws

Lag Screws, sometimes called Lag Bolts, usually require a pre-drilled hole. They are usually larger diameter, with a wood-style thread, and are used to connect wood or like materials that need to bear a heavy load.

Lag screws are some of the strongest fasteners. They are very large & are designed to support much heavier loads than wood screws or sheet metal screws. They have coarse threads and a tapered point which allow them to support a lot of torque. Lag screws are only available with a hex head and can be installed using a ratchet or nut driver.
Common applications of Lag Screws are:

  • • Lumber
  • • Heavy Duty Construction
  • • Wooden Playground Equipment
  • • Bridges
  • • Railroads
Lag Screws Diameters

Lag Screws are available on the FCH Network with Imperial/US diameters that range from #1 to 2 and with Metric diameters that range from M5 to M20. The length of Lag Screws is usually measured from the point to the underside of the head.

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Lag Screws Finishes

Lag Screws are available on the FCH Network in finishes or coatings that range from Plain to Passivated

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Lag Screws Head Types

Lag Screws are available on the FCH Network with head types that range from flat to truss.

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Lag Screws Drive Types

Lag Screws are available on the FCH Network with drive types that range from phillips to 6-lobe.

Click on the drive types below to view or Shop All Lag Screws