b'2.3 FastenersRefer to the Wind Tables below when selecting a fastener. For wind ratings above N4 and C2 please contact Weathertex Technical on (ph: 1800 040 080). Installers must assure themselves that the appearance of the selected fastener is suitable for the intended use. Generally, head sizes in excess of 6mm or T and D head shaped nails may not produce a satisfactory finish on face fixed profiles. Stainless Steel ND50s recommended for ruff-sawn, woodsman & natural profiles. They are not recommended for smooth profiles as they may create an undesirable surface finish. 2.5mm Ring shank nails recommended for smooth profiles.Countersunk screws 2mm below the board surface & filled are recommended for completely concealed fixing of smooth profiles.2.3.1 RESIDENTIAL WIND TABLE - AS 4055 WIND CLASSIFICATIONMaximum Stud SpacingExtend fastener length whenMaximum fastenerNon- GeneralWithin FramepackingFasteners spacing atCyclonicCyclonicAreas of1200mm distanceintermediate studs +Wind Wind Walls of building exceeds thenoggings edgesfollowingN1, N2 600 600Paslode ND50 SS45mm x300 N3 C1 600 450MGP10Product2.5mm TimberDirect to frame Code:B20054A &RingN4 C2 600 300Minimum B20665(Brad &Shank Fuel pack) NailN1, N2, N3 C1 600 600*150N4 C2 600 450N1 600 600300Buildex Treated Pine 10gN2 600 400MGP108x50mm Countersunk Rib Timber10mm Head ScrewN1, N2 600 600Minimum Product Code: X503298150 N3 C1 600 450N4 C2 600 300N1, N2 600 6000.55mm/ 300 N3 C1 600 450G550 SteelSCROOZ 8g x 42mm FibreFix Minimum20mm Cement Board ScrewN4 C2 600 300thicknessProduct Code: FFSC0842TN1, N2, N3 C1 600 600*150N4 C2 600 450N1, N2 600 6000.75mm/ Iccons SD CSK COARSE C3300 N3 C1 600 450G550 Steel12mm 10-16 X 40mm ScrewN4 C2 450 300MinimumProduct Code: Thickness SDCSC1040C3 N1, N2, N3 C1 600 600*150N4 C2 600 450N1, 600 4503000.75mm/ N2 600 400G550 SteelIccons SD CSK Wing Cs 10-16 Minimum20mm x 45mm ScrewN1, N2 600 600Thickness Product Code: TP723150 N3 C1 600 450N4 C2 600 300*Reduce to 450mm centres for N3/C1 Weathergroove 75mm & FusionWeathertex22'