GB/T 70.6-2020: Hexagon socket head cap screws - Fine pitch thread

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Scope

This Part of GB/T 70 specifies the types and dimensions, technical conditions and
designation of hexagon socket head cap screws with fine pitch thread.
This Part is applicable to hexagon socket head cap screws with the nominal diameter
of thread d = 8 mm ~ 36 mm, fine pitch thread, performance level of 8.8, 10.9, 12.9/12.9,
A2-50, A2-70, A3-50, A3-70, A4-50, A4-70, A5-50, A5-70, CU2 and CU3, and Grade-A
of product grade.
The reference mass of screws is shown in Appendix A.

Basic Data

Standard ID	GB/T 70.6-2020 (GB/T70.6-2020)
Description (Translated English)	Hexagon socket head cap screws - Fine pitch thread
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	J13
Classification of International Standard	21.060.10
Word Count Estimation	10,168
Date of Issue	2020-03-06
Date of Implementation	2020-10-01
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration