supply of set of two different hex head bolts (zinc coated) sizes required for the maintenance of transformer top platefixing in 3 phase locomotives as follows 1) set of hex head bolt full threaded size m10 x 30 mm, pitch 1.50mm, grade: 8.8 as per is: 1364. (part-2) one flat washer having id: 11 mm, od: 28 mm, thickness: 2.5mm and one spring washer as per is: 3063.qty/set = 01 set. 2) set of hex head bolt full threaded size: m12x 55 mm, pitch: 1.75 mm, grade: 8.8 as per is: 1364(part-2) along with suitable one m 12 nut, grade:8.0 as per is: 1364 (part-3), two flat washers having id: 13 mm, od: 32 mm, thickness: 3 mm and onespring washer as per is: 3063, qty /set = 01 set. make tvs/unbrako/dfl/bmi/sundeep/bimco.note: one s le set of each items should be got approved before effecting bulk supply. , set of two different hex head bolts (zinc coated) sizes required for the maintenance of transf ormer top plate fixing in 3 phase locomotives as follows 1) set of hex head bolt full threaded size m10 x 30 mm, pitch 1.50 mm, grade: 8.8 as per is: 1364. (part-2) one flat washer having id: 11 mm, od: 28 mm, thi ckness: 2.5 mm and one spring washer as per is: 3063.qty/set = 01 set. 2) set of hex head bolt full thread ed size: m12 x 55 mm, pitch: 1.75 mm, grade: 8.8 as per is: 1364(part-2) along with suitable one m 12 nut, grade: 8.0 as per is: 1364 (part-3), two flat washers having id: 13 mm, od: 32 mm, thickness: 3 mm and o ne spring washer as per is: 3063, qty /set = 01 set. make tvs/unbrako/dfl/bmi/sundeep/bimco. note: o ne sample set of each items should be got approved before effecting bulk supply [ warranty period: 30 m onths after the date of delivery ] ]