Hexagonal Headed Screw M16X100 to IS 1364 ( Part2 ): 2018, IS 1367- PT- 3: 2017, 10. 9, CE, MDTS 057. Brand/ Source- TVS, TUFF, DFL and Unbrako, and all approved vendors for Axle End steel high tensile Cap Screws to be used in end holes of BG freight Axles ( Item ID 3100249, sub item ID 3100249002 or 3100249003 ) borne in the RDSO approved vendor list available on UVAM portal.