168.3x6.4CHS 168.3x6.4CHS Circular Hollow Section CHS 168.3 6.4 3255 25.5533 10682147 126942 167842 57.285 10682147 126942 167842 57.285 21364293 0.5287 0.4885 Pending verification – nominal dimensions entered by the application developer AS/NZS 1163:2016 Cold-formed structural steel hollow sections 2016 2016 2026-10-12 UNVERIFIED Typical grade: C350L0. Nominal dimensions require verification against AS/NZS 1163 and the manufacturer catalogue.