1.1 In this standard, Table 1 is given with the is threads by the inch system, with the basic is profile for triangular thread. It compris s an assembly plan for all applications, as well as particularly for bolts, screws and nuts, based on a selection made in the assembly plan. 1.2 The publication of this standard does not represent any ignorance that the decimal metric system is the official system of measurements in Venezuela. The standard for is Inch Threads has been approved, solely for the purpose of publicizing some types of threads of international interest. As are is threads in the metric system, the subject of the NORVEN 24-8 standard. Section 5 indicates the inch equivalents in millimeters of the measurements that appear in this standard. 1.3 The standard covers diameter dimensions between -0.06 and 6 inches, compris ng a number of series of diameter and size combinations and a thread designation system. 1.4 Each industry or company may choose for itself, selecting the threads lis ed in the table, the diameter and pitch combinations most appropriate to its own needs.
NORVEN 24-9-1963 history
1963NORVEN 24-9-1963 ISO Compliant Screws, Inch Weights and Measures