Vapor Barrier Fasteners are used for securing vapor barrier to the foundation walls and pillars in the crawl space.
Vapor Barrier Fasteners are 1 inch long.
Drill a hole - usually a 1/4" masonry bit or smaller - into wall and then attach wall liner with fastener.
Using Butyl Tape or Vapor Barrier Tape really helps for a sealed and secure vapor barrier.
When encapsulating, consider using Capped Vapor Barrier Stakes as well!