HEX. HEAD BOLT M- 24X90 WITH PREVAILING TORQUE TYPE NUT- M24 & INTERLOCK WASHER SUITABLE FOR M24 BOLT. HEX. HEAD BOLT M24X90 AND PREVELLING TORQUE TYPE NUT- M24 ARE OF MAKE TVS/ UNBRAKO/ GKW AND INTERLOCK WASHER SUITABLE FOR M24 BOLT OF MAKE DISCLOCK/ NORDLOCK/ DURLOCK TO ICF DRG NO: ICF/ STD- 2- 2- 009, items: 12, 14 & 15 ALT: j/ nil. NOTE: FIRM SHOULD SUBMIT AUTHORISED DEALERSHIP CERTIFICATE FOR HEX. HEAD BOLT, M24 NUT AND INTER LOCK WASHER ALONG WITH SUPPLY OF MATERIAL.