Nucor is an ISO 9001 and ISO 14001 certified manufacturer of carbon and alloy products, including bars, sheets, beams, tubings and fasteners. Nucor's product catalogue includes hex cap screws and structural bolts for application in construction projects. These products are built in accordance with ASME standards. Nucor's structural bolts, such as the steel-built tension control bolts, are available in tensile strengths ranging between 120000 psi and 173000 psi for application in steel framing constructions. The carbon steel hex head cap screw from Nucor is offered in different dimensions and thread sizes for precise tolerances needed for OEM applications.