HSS6x6x3/8 HSS6x6x3/8 Square HSS RHS 40.895 152.4 152.4 9.525 8.858 17.717 4884 40.8929 16408532 215335 259024 57.9654 16408532 215335 259024 57.9654 27010700 0.5792 0.5235 Pending verification – nominal dimensions entered by the application developer ASTM A500/A500M and AISC Shapes Database (square HSS) 2026-10-12 UNVERIFIED Outer corner radius 2.0 × design wall thickness (AISC convention) for property calculation; confirm against ASTM A500/A500M and AISC Shapes Database (square HSS) and the manufacturer catalogue. Typical grade: A500 Gr C. popular