- / ' : Insaga 2' floor flange fits outer diameter 1-7/8' round pipe/post, includes necessary screws and bolts. : This round fence post base is made of high quality steel, Black powder coated for scratch and rust resistance, long lasting. : Overall height is 4.3', round base diameter is 5.7', base flange inner diameter is 2', mount the 1-7/8" round post by adjusting the side screws. : Chain link fence pole floor flange can be used on fence, mailbox, railing deck and the like, is a good choice for connecting of the concrete or wood application to the post. : 1 x floor flange, 3 x expansion bolt, 2 x side screws.