FastenMaster FMTHR614-24 ThruLOK Screw Bolt Fastening System, 6-1/4 Inches, 24-Count

Manufactured in United states Easy to use Highly durable Replaces 1/2 inch carriage or through-bolts without predrilling Installs with an 18 volt cordless drill No special bits or wrenches needed Meets all corrosion requirements and is guaranteed for the life of the project