supply of hex head screw m-16 x 60 mm , property class 10.9 to is:1367 (pt-3)/2017 rev-5 fine pitch, pitch length 1.5 mm with hexagon nut m-16 & hexagon thin nut m-16 , property class 10 to is:1367 (pt.-6)/2018 rev-iv along with 2 nos. spring washer b-16 as per is:3063/1994 ( rev-ii ).amndt.1.( ref. drg. cg-14053 alt-5, item no. 6, 7, 8, & 13 ) accepted make :- tvs or dfl or unbrako or tuffhex head screw m-16 x 60 mm , property class 10.9 to is:1367 (pt-3)/2017 rev-5 fine pitch, pitch length 1.5 mm with hexagon nut m-16 & hexagon thin nut m-16 , property class 10 to is:1367 (pt.-6)/2018 rev-iv along with 2 nos. spring washer b-16 as per is:3063/1994 ( rev-ii ).amndt.1.( ref. drg. cg-14053 alt-5, item no. 6, 7, 8, & 13 ) accepted make :- tvs or dfl or unbrako or tuff,hex head screw m-16 x 60 mm , property class 10.9 to is:1367 (pt-3)/2017 rev-5 fine pi tch, pitch length 1.5 mm with hexagon nut m-16 & hexagon thin nut m-16 , property class 10 to is:13 67 (pt.-6)/2018 rev-iv along with 2 nos. spring washer b-16 as per is:3063/1994 ( rev-ii ).amndt.1.( r ef. drg. cg-14053 alt-5, item no. 6, 7, 8, & 13 ) accepted make :- tvs or dfl or unbrako or tuff [ w arranty period: 30 months after the date of delivery ] ]