SQUARE : Zinc plated steel rod Square 6 or 7 mm
SHEATH : Cambered steel sheath : 7 to 8 mm for 7 mm rod - 6 to 7 mm for 6 mm rod.
SCREWS: M4 slotted countersunk head metal screws: length 40 mm for chrome and nylon assembly - length 45 mm with socket for aluminium assembly - length 45 mm with socket for brass assembly
