Photo by Michael DziedzicOriginally Posted On: https://www.mudgefasteners.com/lag-screw-pilot-hole-diameters
Pilot or lead holes are typically used to ease the installation of lag bolts. Refer to the chart below for commonly accepted hole sizes. There are a number of variables that may change the required pilot hole dimensions including bolt length, diameter and wood species. For questions regarding specific applications, consult an engineer.
Click here to download a printable PDF chart of these lag bolt pilot hole diameters.
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