Lindsey’s Pole Top Bracket securely mounts to a pole top for installation of vertical insulator directly
above the center of the pole for more uniform appearance installation to the pole is accomplished with
two bolts (not furnished with brackets) witch pass through the pole and side plates and are secured with
nuts at both ends.
http://lindsey-usa.com/wp-content/uploads/2015/10/Pole-Top-Bracket.pdf
Hole sizes in the side plates are 13/16”. Brackets are adjustable to fit poles from 71/2 to 16”. The top plate has a 5” bolt circle, with 11/16” holes, and center bolt hole 15/16” for insulator mounting. The Lindsey No. 8234 Drilling Jig shown in Section 8 is ideally suited for drilling mounting holes in the pole. The photo shows a typical triangular construction using the No. 2050 Pole Top Bracket and a Lindsey Horizontal Fail Safe Extension Arm with shroud.
For more details: Pole Line Hardware and Insulating Bases
http://lindsey-usa.com/wp-content/uploads/2015/10/Pole-Top-Bracket.pdf
Hole sizes in the side plates are 13/16”. Brackets are adjustable to fit poles from 71/2 to 16”. The top plate has a 5” bolt circle, with 11/16” holes, and center bolt hole 15/16” for insulator mounting. The Lindsey No. 8234 Drilling Jig shown in Section 8 is ideally suited for drilling mounting holes in the pole. The photo shows a typical triangular construction using the No. 2050 Pole Top Bracket and a Lindsey Horizontal Fail Safe Extension Arm with shroud.
For more details: Pole Line Hardware and Insulating Bases