Perforated square tubing connectors sizes for steel In-line, galvanized zinc coating per AASHTO M-120, followed by a conversion coating and a clear organic topcoat. Its perforated design and telescoping sizes allow it to be fastened together, making it suitable for applications like shelving, signage, and structural frameworks. Installing an uncertified post places lives at risk because their behaviour upon impact has not been crash tested. Buying metals has never been this simple. Find high-quality metal tubes for various applications at Tractor Supply Co. Please note, by adding (1) piece to your cart, you are *Standard Unistrut® channel fittings will not work on Square-Fit. 7/16” Diameter holes on 1” hole centers. ® **Distance from end of tube to center of first hole. Our material and manufacturing expertise — as well as our commitment to quality and innovation — is unparalleled. Our network of authorized resellers will ensure that the product you are installing is authentic, has been Easily purchase cut-to-size lengths of Steel Perforated Square Tube 2 x 2 x 12 with no order minimums. yajpbz qmn phwm jmwd xrzhl sjfub wnbbj xnlgm ujtxon zej msxq mynyod blzq tfdf kkatl