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QC/T 1104-2019 English PDF (QCT1104-2019)

QC/T 1104-2019 English PDF (QCT1104-2019)

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QC/T 1104-2019: 12-point head heat resistant bolts

This standard specifies the type, size, technical conditions, number of 12-point head heat resistant bolts for automobiles. This standard is applicable to 12-point head heat resistant bolts for automobiles, which have thread specifications of M5 ~ M12, material properties abbreviated as SB, product grade of TA, working temperature below 700 ??C.
QC/T 1104-2019
QC
AUTOMOBILE INDUSTRY STANDARD
OF THE PEOPLE REPUBLIC OF CHINA
ICS 43.040
T 31
12-point head heat resistant bolts
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ISSUED ON: AUGUST 02, 2019
IMPLEMENTED ON: JANUARY 01, 2020
Issued by: Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Type size ... 5
4 Technical requirements and reference standards ... 7
5 Product number ... 8
12-point head heat resistant bolts
1 Scope
1.1 This standard specifies the type, size, technical conditions, number of 12-point head heat resistant bolts for automobiles.
1.2 This standard is applicable to 12-point head heat resistant bolts for automobiles, which have thread specifications of M5 ~ M12, material properties abbreviated as SB, product grade of TA, working temperature below 700 ??C.
2 Normative references
The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) is applicable to this standard.
GB/T 2 Fasteners - Ends of external thread parts
GB/T 90.1 Fasteners - Acceptance inspection
GB/T 90.2 Fasteners - Marking and packaging
GB/T 196 General purpose metric screw threads - Basic dimensions
GB/T 197 General purpose metric screw threads - Tolerances
GB/T 3103.4 Tolerances for fasteners - Bolt/nut assemblies for service temperatures from -200 ??C ~ +700 ??C
GB/T 3098.8 Mechanical properties of fasteners - Parts for bolted connections for use at temperatures -200 ??C ~ +700 ??C
GB/T 5276 Fasteners - Bolts, screws, studs and nuts - Symbols and descriptions of dimensions
GB/T 5779.3 Fasteners - Surface discontinuities - Bolts, screws and studs for special requirements
GB/T 14992 Classification and designation for superalloys and high temperature intermetallic materials

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