1. 1 U Bolt 3 Part Aluminum Die-cast Tension Hardware. 2. 2 U Bolt 4 Part Malleable Cast Iron Tension Hardware. 3. 2 U Bolt 5 Part Malleable Cast Iron Suspension Hardware. 4. Spindle Rod for Pin Insulator. Hardware connected with 11 / 22 / 33 kV Power Sub Station and Transmission line. 1. Tension or Suspension hardware, single U Bolt, 2 U Bolt, 4 U Bolt types are made from Aluminum Die-cast / malleable C.I. / S.G. Iron, suitable for whole range of Conductors. 2. G. I. Pin (Pin Spindle) suitable for 11 / 22 / 33 kV Pin Insulators. 3. Clamps and Connectors for conductors fitting: P G clamps, T clamps, C T P T clamps, Pad type clamps, Expansion type clamps, Tee Loop connectors, and BI-metallic clamps.