South Carolina Highway 212  South Carolina Highway 212 (SC 212) is a primary state highway in the U.S. state of South Carolina. It serves the town of Williams by connecting it with nearby highways. SC 212 is a two-lane rural highway that connects the town of Williams between SC 64 and U.S. Route 21 (US 21). Within Williams, it intersects SC 362 at its eastern terminus. Established around 1938 as a new primary routing as a spur from US 21 to Williams. In 1940, it was extended south to its current southern terminus at SC 64. In 1950, the entire route was completely paved.