SOCKET HEAD CAP SCREW TO SIZE = M12X60, THREADING PORTION 1/ 2 INCH FROM BOTTOM SIDE ( GEAR BOX SCREW ) TO PROPERTY CLASS 12. 9 AS PER 1367. ZINC ALUMINUM FLAKE COATING CHROME FREE SILVER GRAY ( SST- 500 HRS MIN ). MAKE- SKF FASTENERS, WURTH OR UNBRAKO ONLY. MATERIAL WILL BE TESTED FROM APPROVED INDIAN GOVT. NABL ACCREDITED METAL TESTING LAB. EMBOSSING SHOULD BE PROVIDED. ( MATERIAL TO BE PROCURED FROM OEM OR ITS AUTHORIZED DEALER AND MAY PLEASE SUBMIT PROOF OF PURCHASE ).