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Heavy Duty Lag Bolts

TreeHouseSupplies.com's heavy duty, specially customized and crafted lag bolts are designed by us for supporting a tree house. They are to be used to carry lighter weights when TABs are not quite necessary. Our tree house lag bolts come in 1” & 1¼” versions with varying lengths. All come hot dipped galvanized. Please watch our tree house lag bolt video for a full introduction.


Make sure the size lag bolt you are buying matches the brackets you are using!!


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Tree House Lag Bolt 1.25x8 Galvanized Tree House Lag Bolt 1.25x8

Will only work with a 1.25" type bracket!

Our Price $27.95
Tree House Lag Bolt 1.25x12 Galvanized Tree House Lag Bolt 1.25x12

Will only work with a 1.25" type bracket!

Our Price $31.95
Tree House Lag Bolt 1.25x15 Galvanized Tree House Lag Bolt 1.25x15

Will only work with a 1.25" type bracket!

Our Price $37.95
Tree House Lag Bolt 1x12 Galvanized Tree House Lag Bolt 1x12

Will only work with a 1" type bracket!

Our Price $29.95
Tree House Lag Bolt 1x15 Galvanized Tree House Lag Bolt 1x15

Will only work with a 1" type bracket!

Our Price $34.95
Tree House Lag Bolt 1x18 Galvanized Tree House Lag Bolt 1x18

Will only work with a 1" type bracket!

Our Price $38.75
1-1/4"  Galvanized Washer 1-1/4" Galvanized Washer

1-1/4"  Galvanized Washer

Our Price $1.67
1"  Galvanized Washer 1" Galvanized Washer

1"  Galvanized Washer

Our Price $1.50
3/4in.handle & 1-7/8" socket 3/4in.handle & 1-7/8" socket - Used to install TABS and 1.25" Lags

3/4in.-drive ratchet handle &1-7/8in., 3/4in.-drive 6-pt. chrome molybdenum jumbo socket rental.

Our Price: $89.99
1/2" Round Galvanized Malleble Washer 1/2" Round Galvanized Malleble Washer

1/2" Round Galvanized Malleble Washer

Our Price $0.89
3/4" Round Galvanized Malleble Washer 3/4" Round Galvanized Malleble Washer

3/4" Round Galvanized Malleble Washer

Our Price $1.82
5/8" Round Galvanized Malleble Washer 5/8" Round Galvanized Malleble Washer

5/8" Round Galvanized Malleble Washer

Our Price $1.37
1" Round Galvanized Malleble Washer 1" Round Galvanized Malleble Washer

1" Round Galvanized Malleble Washer

Our Price $2.85