6-5/8" x .280 x 24' Galvanized Commercial SCH40 Pipe for Chain Link Fences 6-5/8" and the bottom hole is

and the bottom hole is for padlocks for extra security

How the part fits/ where is it installed

This particular pipe is usually used as a thinner

These hinges in tandem with female hinges require a 2" spacing between the post and gate frame to operate properly

Posts are the big vertical pillars that go into the ground and hold your fence in place

6-5/8" x .280 x 24' Galvanized Commercial SCH40 Pipe for Chain Link Fences 6-5/8" and the bottom hole isThis is a 6 5 8" O. D. by . 280" thick by 24' long galvanized commercial schedule 40 pipe. This particular pipe is the third grade of commercial thickness and is usually used as gate or terminal posts for commercial chain link fences. Due to its length, this can only be shipped via flatbed. 6 5 8" nominal & actual O. D. . 280" wall thickness Schedule 40 Galvanized steel Made for commercial use