3/8"-16 Hex Bolts, Nuts and Washers - Grade 8 Steel with 9/16 in Head

A Grade 8 steel nuts, bolts, and washers set in 3/8"-16 thread with 9/16" hex head — zinc yellow coated for corrosion resistance. Grade 8 rating means these hold up to the torque and vibration that grip hardware sees on a working set. The right hardware for building and maintaining grip rigs that need to stay tight.