supply of stiffener platestiffener plate,stiffener plate along with fasteners for front carrier plate of cbc as per rdso drawing no. r dso/cg/drg/24034, alt. 2. item nos. 1 to 5. note:- 1. stiffener plates shall be as per is:3885 part-2, grade- 5 in annealed condition with hardness between 190-245 bhn. 2. 50% of stiffener plates shall have holes wi th pitch=100+-0.5mm and distance from edge = 25+-1mm, while remaining 50% stiffener plates shall hav e holes with pitch=90+-0.5mm and distance from edge=30+-01mm. 3. hex head bolt supply shall be of re puted make as per make mentioned in attached drawing no. rdso/cg/drg/24034, alt. 2. [ warranty peri od: 30 months after the date of delivery ] ]