supply of hex head screw m-16 x 60 mmhex head screw m-16 x 60 mm,hex head screw m16x60 mm, property class 10.9 to is:1367 (pt-3)/2017 rev-5 fine pitc h, 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). acceptable makes are %u201ctvs%u201d or %u201cdf l%u201d or %u201cunbrako%u201d or %u201ctuff%u201d only as per drg. no [ warranty peri od: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]