QB/T 2314-1997 Watch dial nail diameter size series

This standard specifies the diameter dimension series and tolerances of watch dial nails. This standard applies to pointer watches. QB/T 2314-1997 Watch dial nail diameter dimension series QB/T2314-1997 Standard download decompression password: www.bzxz.net

QB/T2314-1997
This standard is revised based on the original national standard GB4046-1983 watch dial nail diameter size series. During the revision process, the main technical content has not been significantly modified, and the standard size series has been supplemented. The main differences between this standard and the original GB4046-1983 are: the writing format and expression method are in accordance with GB/T1.1--1993 "Guidelines for Standardization Work Unit 1: Drafting and Expression Rules of Standards Part 1: Basic Regulations for Standardization"; Chapter 3 of the second series of diameter sizes is added. This standard is proposed by the Quality Standards Department of the China Light Industry Federation. This standard is under the jurisdiction of the National Clock and Watch Standardization Center. The drafting unit of this standard: Xi'an Butterfly Watch Factory. The main drafters of this standard: Li Jianhua, Wang Zhiguo, Wang Weimin. This standard shall replace GB4046-1983 from the date of implementation. 110
Light Industry Standard of the People's Republic of China
Watch dial nail diameter dimension series
This standard specifies the diameter dimension series and tolerance of watch dial nails. This standard applies to pointer watches.
2 Definitions and codes
This standard does not use the following definitions.
2.1 Dial nails The nails that play a positioning role when assembling the dial and the main plate of the watch movement. 2.2 The diameter code of dial nails is shown in Figure 1. Figure 1 shows the dial nails
3 Dimension series and tolerances
The diameter dimension series and tolerances of dial nails are shown in Table 1. d
First series
Second series
Note: The first series is preferred. The dimensions in brackets should be avoided. Approved by China Light Industry General Association on September 1, 1997bzxZ.net
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QB/T 2314-—1997
Implemented on May 1, 1998
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