Grade 5 Fasteners

Grade 5 Fasteners

Grade 5 fasteners (medium carbon steel, 120 ksi tensile strength) are the industrial workhorse — used in automotive, machinery, and general construction. Identified by 3 radial lines on the bolt head. Standard finishes: Zinc plated, Yellow zinc, or Hot Dipped Galvanized. Specification: SAE J429 Grade 5.