supply of set of hex head bolts of different sizes , set of hex head bolts of different sizes required for maintenance of pantograph base insulators in ac elec tric locomotives. a) hex head bolt full threaded size: m12 x 35 mm, grade: 8.8 as per is: 1364(part-2), along with suitab le one nut, grade: 8.0 as per is: 1364(part-3), two flat washers as per is: 2016 and two spring washers as per is: 3063. qty/set. = 01 set. b) hex head bolt full threaded size: m14 x 30 mm, grade: 8.8 as per is: 1364(part-2), along with suita ble one nut, grade: 8.0 as per is: 1364(part-3), two flat washers as per is: 2016 and two spring washers as per is: 306 3. qty/set. = 01 set. makes: unbrako/ tvs/ dfl/ lps/ sundeep/ bimco or similar. note: 1) all dimensions are in mm. 2) all materials are zinc coated. 3) one sample set of each subject item should be got approved before effecting bulk supp ly. [4] firm shall quote any one make for the tendered description along with valid authorization, if vendor offers/bids fo r more than one make or if the firm mentions, as per tender in their bid(s), their offer will be summarily rejected. ]