GB/T 820-2015: Raised countersunk head screws with cross recess

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Scope

This standard specifies the type and size, technical condition and marking of
the raised countersunk head screws with cross recess.
This standard applies to the type H and type Z raised countersunk head screws
with cross recess of the thread specification M1.6 ~ M10, the performance level
of 4.8, A2-50, A2-70, CU2, CU3 and AL4, AND the product grade A.

Basic Data

Standard ID	GB/T 820-2015 (GB/T820-2015)
Description (Translated English)	Raised countersunk head screws with cross recess
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	J13
Classification of International Standard	21.060.10
Word Count Estimation	7,731
Date of Issue	2015-12-31
Date of Implementation	2016-04-01
Older Standard (superseded by this standard)	GB/T 820-2000
Quoted Standard	GB/T 90.1; GB/T 90.2; GB/T 193; GB/T 944.1; GB/T 1237; GB/T 3098.1; GB/T 3098.6; GB/T 3098.10; GB/T 3103.1; GB/T 5267.1; GB/T 5267.2; GB/T 5267.4; GB/T 5276; GB/T 5779.1; GB/T 9145; GB/T 16938
Adopted Standard	ISO 7047-2011, MOD
Regulation (derived from)	State Standard Announcement 2015 No.43
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the type size, technical conditions and marking of the cross recessed countersunk head screws. This standard applies to H-type and Z-type cross recessed countersunk head screws with grade A of grades M1.6 to M10, performance classes 4.8, A2-50, A2-70, CU2, CU3 and AL4.