This is a special limited edition of our 4x4 post anchor made of 316 marine grade stainless steel with a 5" tube instead of the standard 3.5" length.

We designed this as a prototype because of all the requests we had from people who wanted a final solution for harsh marine environments.  There are only 1500 pieces from this production run so get them now while they are in stock. 

Use a 1.25" dia. hole saw (1-7/8" inside depth) to prepare post with a circular pilot cut to guide cutting edge of tube.  Then driven the tube into the post as shown in installation video. If intended to be used with composite and hard wood posts different installation techniques apply because of the hardness of those materials.