Hex Nut M10 prevailing torque to DIN6925/ DIN980V, IS 1367- 2002 IS 1367- 2002 PT- 8, 10, A3B. Make: TVS/ UNBRAKO/ LPS and all Approved vendors for Axle end steel high tensile cap screws ( to be used in end holes of BG freight axles ) born on the RDSO vendor list QM- M- 8. 1- 1 to RDSO letter No. MC/ CTRB/ Genl. Dated: 21- 04- 2021.