20mm Connectors are suitable for 20mm x 20mm x 1.5mm Stainless Steel Box Section. Rectangular SS Tube; ERW Rectangular Tube; Galvanised Square Tube; Stainless Square Tube; ERW Square Steel Tube; Square Tube; Inquiry Email: info@permanentsteel.com. Plastic U Channel 10.5 x 11.5mm White 1 Metre. £1.73 INC VAT. Commonly known as Aluminium Box Section, these extruded square & rectangular aluminium tubes are ideal for making frames. Structural Steel - RHS - Rectangular Hollow Section. line-height: 150%; Add to compare list. Plastic Box Sections; BOX 30mm x 30mm x 3mm; Plastic Box Sections. Description: Size (A X B X T) Spec: Aluminium Box Tube: 1/2" X 1/2" X 16G: 6063T6: Aluminium Box Tube: 5/8" X 5/8" X 16G: 6063T6: Aluminium Box Tube Rad Corners Shop by category. Add to compare list. Aluminium Tube . Total: £ 0.00. Choose from a range of sizes of square plastic tubes and uPVC rectangular section to suit your project. M8x Adjustable Foot & Threaded Insert for 30mm box section. £1.90 (inc VAT:) £1.58 (ex VAT:) Add To Cart. Weight 0.18 KG/M. Stiffness 2.05 knm2. Box sections are stocked in either 1.5m lengths, 3m lengths or 6m lengths – all of which can be cut exactly to your measurements. Square Hollow Section (SHS) (P), also known as Cold Formed Square Hollow, Square Mild Steel Hollow, Hollow Square in stock for next day delivery. Items: 0. font-family:Arial, Helvetica, sans-serif; Box profile is more commonly used on industrial and agricultural buildings. 25mm Connectors are suitable for 25mm x 25mm x 1.5mm Stainless Steel Box Section.