GB/T 3098.3-2016: Mechanical properties of fasteners -- Set screws

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Scope

This Part of GB/T 3098 specifies the mechanical and physical properties of set screws
and similar threaded fasteners with specified hardness classes, which are
manufactured by carbon steel or alloy steel, and tested at the environmental
temperature of 10°C~35°C. At such environmental temperature range, assess the
fasteners (including set screws and similar threaded fasteners with specified hardness
classes, the same below) as per the requirements of this Part. The fasteners meeting
the requirements of this Part shall be classified as per the specified hardness class,
and are only applicable to the compressive stress.
NOTE. The applicable usage temperature of fasteners produced as per this Part is -
50°C~+150°C. When the usage temperature exceeds the range of -50°C~+150°C, even as
higher as +300°C, the users shall consult to the relative parties.
This Part applicable set screws and similar threaded fasteners.
--- Manufactured by carbon steel or alloy steel;
--- Conform to the ordinary thread specified in GB/T 192;
--- Coarse pitch thread M1.6~M30; fine pitch thread M8×1~M30×2;
--- Conform to the diameter and pitch combination specified in in GB/T 193 and
GB/T 9144;
--- Conform to the thread tolerance specified in GB/T 197 and GB/T 9145.
This Part didn’t specify the following property requirements.
--- Tensile strength;
--- Shear strength;
--- Weldability;
--- Corrosion resistance;
--- Property requirement with working temperature higher than +150°C or lower than
-50°C.

Basic Data

Standard ID	GB/T 3098.3-2016 (GB/T3098.3-2016)
Description (Translated English)	Mechanical properties of fasteners -- Set screws
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	J13
Classification of International Standard	21.060.10
Word Count Estimation	15,176
Date of Issue	2016-02-24
Date of Implementation	2016-06-01
Older Standard (superseded by this standard)	GB/T 3098.3-2000
Quoted Standard	GB/T 90.3; GB/T 192; GB/T 193; GB/T 197; GB/T 230.1; GB/T 231.1; GB/T 2516; GB/T 4340.1; GB/T 5267.1; GB/T 5276; GB/T 5779.1; GB/T 9144; GB/T 9145
Adopted Standard	ISO 898-5-2012, MOD
Regulation (derived from)	National Standard Announcement No
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 mechanical and physical properties of threaded fasteners made of carbon steel or alloy steel, set screws and similar specified hardness classes when tested at ambient temperatures of 10 �� C to 35 �� C. The fasteners (including threaded fasteners with set screws and similar specified hardness grades) shall be assessed in accordance with the requirements of this standard in the ambient temperature range. Fittings conforming to the requirements of this standard are classified according to the specified hardness class and apply only to compressive stresses. Tightening screws and similar threaded fasteners to be used in this standard: Manufactured from carbon or alloy steel; Normal thread according to GB/T 192; Coarse thread M1.6 to M30, Fine thread M8x1 ~ M3O �� 2; in line with GB/T 193 and GB/T 9144 regulations