Product Information: C1018 Cold Finished Flats or known as Cold Roll Flat Bar is a low carbon steel with closer dimensional accuracy, tolerances, and smoother surface finish than hot rolled bar. C1018 Cold Finish Flat Bar is a general purpose steel with good case hardening qualities and is especially suited for cold forming and bending. Material: Steel Shape: Flat Bar Alloy: C1018 Temper: Annealed Thickness: 0.375 inch Width: 0.500 inch Length: 36 inches Finish: Cold Finished Quantity in Package: 1 piece(s) Specifications: ASTM A108 Tolerances: Thickness and Width: (+/-0.003) | Length: (-0/+0.999) MTR Available: Shipping: To offer the fastest and most reliable shipping we ship via UPS only. We are not able to deliver to PO boxes.We offer FREE UPS Ground Shipping. You can also upgrade to UPS 2nd Day Air and UPS Next Day Air Saver if needed.