Tender For supply of tap, hand, screwing, hss, m80x4mm pitch as per is: 6175 with ground thread, consisting of 2 pieces (tape , " tap, hand, screwing, hss, 3/4in bsp ground thread, in a set of two: taper and bottoming as per bs: 949-19 , " die nut, hexagon, hss, dia: 30mm x2.0 pitch cut thread, for screwing metric threads, as per is: 12324 of , " spanner, socket, 32mm 19mm(3/4in) square drive"