procurement of special purpose ht bolts and nuts of grade 10.9 for 1x500mw chp at sgtps mppgcl birsinghpur , rotary breaker / ring granulator. , hexagonal head bolts with self locking nuts, check nut, 2 plain washers, spring washers, half length threads bolt. size : m20 x 100 mm , square head bolts with self locking nuts, check nut, 2 plain washers, spring washers, square head half length threads bolt. size : m24 x 135 mm , square head bolts with self locking nuts, check nut, 2 plain washers, spring washers, square head half length threads bolt. size : m24 x 160 mm , square head bolts with self locking nuts, check nut, 2 plain washers, spring washers, square head half length threads bolt. size : m24 x 220 mm , hexagonal head bolts with nut, 2 plain washers, spring washers, half length threads bolt. size : m24 x 160 mm , ht bolts ( half thread portion ) with nut, 1 plain washer & 1 spring washer for gearbox. , m 06x25 , m 10x40 , m 12x150 , m16 x 150 , ht bolts ( half thread portion ) with nut and 1 plain washer & 1 spring washer for plough feeder. , m20 x 180 , ht nut & bolts with 1 plain washer & 1 spring washer for fluid coupling. , m12 x 50 ( full thread ) , m12 x 65 ( half thread ) , allen key bolts with 1 plain washer & 1 spring washer. , m6 x 25 , m8 x 80 , m10 x 70 , m10 x 90 , m12 x 40 , m12 x 50 , m14 x 200 ( 1 / 4 thread ) , m16 x 65 , m20 x 50 , m20 x 80 , m24 x 80 , m24 x 180 , m30 x 120 , csk ht nut & bolts with 1 plain washer & 1 spring washer. , m20 x 80 , m20x120 , m20 x 130 , m24 x 100