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GB/T 845-1985 English PDF (GBT845-1985)

GB/T 845-1985 English PDF (GBT845-1985)

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GB/T 845-1985: Cross recessed pan head tapping screws

This Standard specifies the cross recessed pan head tapping screw of which the thread size is ST 2.2 ~ ST 9.5. This Standard equivalently uses an International Standard ISO 7049-1983 Cross recessed pan head tapping screws.
GB 845-85
GB
NATIONAL STANDARD OF
THE PEOPLE REPUBLIC OF CHINA
UDC 621.382.216.5.082.6
Replacing GB 845-76
Cross recessed pan head tapping screws
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ISSUED ON. AUGUST 1, 1985
IMPLEMENTED ON. JUNE 1, 1986
Issued by. National Bureau of Standards
Table of Contents
1 Introduction ... 3
2 Normative references ... 3
3 Size ... 4
4 Technical conditions ... 7
5 Marking ... 7
Additional information... 7
Cross recessed pan head tapping screws
1 Introduction
This Standard specifies the cross recessed pan head tapping screw of which the thread size is ST 2.2 ~ ST 9.5.
This Standard equivalently uses an International Standard ISO 7049-1983 Cross recessed pan head tapping screws.
2 Normative references
GB 5280-85, Tapping screws thread
GB 3098.5-85, Fasteners - Mechanical properties - Tapping screws
GB 3103.1-82, Tolerances for fasteners-Bolts, screws, studs and nuts
GB 944.1-85, Cross recesses for screws
GB 5267-85, Electroplated coatings on threaded fasteners
GB 90-85, Acceptance inspection, marking and packaging of fasteners

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