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🌲 Secure your childhood dreams with the ultimate treehouse backbone!
The Nelson Treehouse Tree Fort Attachment Bolt (TAB) is a 20-inch, 1-inch diameter alloy steel lag bolt engineered to safely support 2,500-4,500 lbs in kid-scale treehouses. Designed for easy installation and long-term tree health, this lightweight yet robust hardware is lab-tested and engineer-approved, making it the go-to choice for backyard treehouse projects that last generations.






| ASIN | B0CPGMJVYJ |
| Best Sellers Rank | #167,724 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,557 in Bolts |
| Brand | Nelson Treehouse |
| Color | Steel |
| Customer Reviews | 5.0 5.0 out of 5 stars (4) |
| Exterior Finish | Unfinished |
| Fastener Size | 1 inch |
| Fastener Type | Lag Bolt |
| Finish Types | Unfinished |
| Head Type | Hex |
| Item Diameter | 1 inches |
| Item Dimensions | 20 x 2 x 1 inches |
| Item Hardness | Rockwell C250-350 |
| Item Weight | 8 pounds |
| Manufacturer | Nelson Treehouse |
| Manufacturer Grade | Grade 2 |
| Material Type | Alloy Steel |
| Metal Type | Alloy Steel |
| Number Of Items | 1 |
| Number of Pieces | 1 |
| Outside Diameter | 1 inches |
| Part Number | 650728283744 |
| Screw Head Style | Hex |
| Size Name | 20" |
| Thread Class | 1A |
| Thread Coverage | Partially Threaded |
| Thread Size | 1"-8 |
| Thread Style | Right Hand |
| Thread Type | Unc |
| UPC | 650728283744 |
| Unit Count | 128 Ounce |
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