Lag Bolt Pilot Hole Calculator
Recommend pilot hole sizes for lag bolts: shank clearance + threaded pilot diameter (typically 60-75% of shank for hardwood).
Clearance Hole
0.5000 in
Thread Pilot Hole
0.3500 in
Recommend pilot hole sizes for lag bolts: shank clearance + threaded pilot diameter (typically 60-75% of shank for hardwood).
Clearance Hole
0.5000 in
Thread Pilot Hole
0.3500 in