An auction a while back had one of the insulators with a hot clamp attachment. The listing provided the two catalogue pages shown here. I have just moved and have 93 boxes of just pin type insulators, but a box of hardware with several different clamping style brackets was on top. The sweetest piece of hardware I have is the hot clamp attachment shown on the single insulator. The other insulator uses a U bolt as shown in the pages. Four of the brackets are different.