supply of hex bolt & nut ,part no: m10x50 mm & hex head bolt m12x50, & hexagonal head screw size: m12x40-8.8 , hex bolt & nut ,part no: m10x50 mm with 02 no. plain washer and 01 no. spring washer ma terial specification :-hex bolts are confirming to s:1364, part-2 2002, a2-70 to tab. 2 of is:1367 (part. 14/s ec1): 2018 & nut with is: 7002-2018, a2-70 to is: 1367 pt. 14 , spring washer stainless steel aisi 304 make -tvs,tuff, dfl , unbrako. [ warranty period: 30 months after the date of delivery ] ] , hex head bolt m12x50, grade-8.8, is:1364 (pt-ii)/2023 , with m12 nut property to is:7002 an d washer as per is:2016-67, make-tvs/tuff/dfl & unbrako only. [ warranty period: 30 months after th e date of delivery ] ] , hexagonal head screw size: m12x40-8.8 as per spec. no. - iso:4017/is:1364 part - 2, property clause 8.8 to is : 1367 (part-3)-2002 with double plain washer size: a-13 steel 200hv ?a3l as per specification no: is :2016-67 tab 2, type- a along with prevaling torque hexagonal nut as per spec no.- iso7040/is:7002 tab-1. accepted make ? tvs, tuff, dfl and unbrako only. [ warranty period: 30 months after the date of delivery ] ]