U.S. Tsubaki TNU Top chain consists of polyacetal resin top plates snapped onto a special chain the same size as RS60 chain and made of carbon steel or nickel-plated carbon steel. The outside surface of the snap is tapered for float prevention.

TNU AND TNU-NP
Top plates are made of polyacetal. Chains are carbon steel or nickel-plated.
Unit of Measure

Slat Width XW

N/A 3.250 in

Color 

N/A Gray

Chain Material

N/A Carbon Steel or Nickel-Plated