TNA60 (5/16×6.0″) SYSTEM 60, Large Sign Security Fastener System, Box/100

Includes 5/16″ x 6″ Carriage Bolts, CB-1 Carriage Bolt Adapters, Tufnuts, and White Tufnut Washers

Secure large signs using 6″ Carriage Bolts, Tufnut Security Nuts, Carriage Bolt Adapters, and Tufnut Washers. All the security fasteners you need for installing signs on 4″x4″ posts.