ISO 898-5:2012
Mechanical properties of fasteners made of carbon steel and alloy steel — Part 5: Set screws and similar threaded fasteners with specified hardness classes — Coarse thread and fine pitch thread
ISO 898-5:2012 specifies mechanical and physical properties of set screws and similar threaded fasteners made of carbon steel or alloy steel when tested at an ambient temperature range of 10 °C to 35 °C. Fasteners (the term used when set screws and similar threaded fasteners are considered all together) which conform to the requirements of ISO 898-5:2012 are evaluated at that ambient temperature range.
Fasteners according to ISO 898-5:2012 are classified to specified hardness classes and are intended for use under compressive stress only.
ISO 898-5:2012 is applicable to set screws and similar fasteners:
- made of carbon steel or alloy steel,
- having a triangular ISO metric screw thread according to ISO 68-1,
- with a coarse pitch thread M1,6 to M30, and fine pitch thread M8×1 to M30×2,
- with diameter/pitch combinations according to ISO 261 and ISO 262, and
- having thread tolerances according to ISO 965-1 and ISO 965-2.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Designation system
6 Materials
7 Mechanical and physical properties
8 Applicability of test methods
8.1 Manufacturer’s inspection
8.2 Supplier’s inspection
8.3 Purchaser’s inspection
9 Test methods
9.1 Hardness test
9.2 Decarburization test
9.3 Carburization test
9.4 Proof torque test for hexagonal socket set screws and hexalobular socket set screws of hardness class 45H
10 Marking
10.1 General
10.2 Manufacturer’s identification mark
10.3 Marking set screws with hardness class
10.4 Marking of packages
Annex A (informative) Hydrogen embrittlement relief after electroplating of set screws
Bibliography
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Designation system
6 Materials
7 Mechanical and physical properties
8 Applicability of test methods
8.1 Manufacturer’s inspection
8.2 Supplier’s inspection
8.3 Purchaser’s inspection
9 Test methods
9.1 Hardness test
9.2 Decarburization test
9.3 Carburization test
9.4 Proof torque test for hexagonal socket set screws and hexalobular socket set screws of hardness class 45H
10 Marking
10.1 General
10.2 Manufacturer’s identification mark
10.3 Marking set screws with hardness class
10.4 Marking of packages
Annex A (informative) Hydrogen embrittlement relief after electroplating of set screws
Bibliography