IS 6148 : 1971 Specification for Head Fittings and Round Nuts Used with Ships Blocks

1 Scope

1.1 This standard specifies the requirement for head fittingsand round nuts used with ships blocks.

2 References

IS 2 :1960 Rules for rounding offnumerical values

IS 1367 : 1967 Technical supply conditions forthreaded fasteners

IS 1570 : 1961Schedules for wrought steels for general engineeringpurposes

IS 2102 : 1969Allowable deviations for dimensions without specifiedtolerances

IS 4218 : 1967 ISO metric screw threads