IS 1364-5 INDIAN STANDARD HEXAGON HEAD BOLTS, SCREWS AND NUTS OF PRODUCT GRADE ‘A’ AND ‘B’ PART 5 HEXAGON THIN NUTS – PRODUCT GRADE B (UNCHAMFERED) (SIZE RANGE M1.6 T0 M10) IS 1364 Part 5: 2002 / ISO 4036 Steel : 4, 8, 10Finish: Self, Zinc Plated, Hot Dip Galvanized