provision of operational store , a ( revised ) picket of size 75mmx75mm x6m angle 4 . 215m long measured along the internal dimension incl v swan neck with min weight of 28 . 662 kgs with tolerance + / - 5% with one coat of red oxide . make tata / jindal / sail . , punched tape baby coil ( including spike and handle ) with 50 turns and dia 600mm , having a 2 . 6mm dia core wire of high carbon spring steel of high tensile strength . the punched tape and core wire are electro galvanized to provide protection against out door exposure . the punched tape is mechanically crimped over the cover wire and then formed into a coil at various parts of the periphery of the coil steel clips connect the individual turns of the coil to each other so that it opens up like an accordion . the weight of each coil will be 9 . 5+5% kgs without packing material and coil length 7 . 5 mtr when opened up . each coil wound with bituminized hession cloth for providing protective coating as per specification no ind / eng / prov / 1245 is for raw material and drawings imga 0112 / b ( sheet 1 of 2 ) , imba-0112 / c ( sheet 2 of 2 ) , impd-1817 / b , impd-1820 , impd-1821 / b and impd-1822 / b . , gi binding wire annealed not less than 0 . 9 mm dia . ,