This ingenious anchoring device makes it easy to install your mailbox post. Use the included 19" long rebar to turn the oversize screw right into the soil. Then attach your standard 4 x 4 wood post (
No-Dig Ground Screw For Mailpost Item Details from Gardener's Supply Company:
No-Dig Ground Screw For Mailpost
SKU: 8587086
Description: This ingenious anchoring device makes it easy to install your mailbox post. Use the included 19" long rebar to turn the oversize screw right into the soil. Then attach your standard 4 x 4 wood post (not included) using the five included lag screws. Galvanized steel, rebar Screw is 22-1/2" L x 2-3/4" diameter; 28" L overall Rebar is 19" L Works best in average soil; not recommended for rocky or sandy soil Easy assembly Supports a standard 4 x 4 wood post, not included