Standard
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AS 1559:2018
[Current]Hot-dip galvanized steel bolts and associated nuts and washers for tower construction
Specifies the requirements for hot-dip galvanized bolts and step bolts with ISO metric coarse pitch series threads for normal and low temperature applications in tower construction, and associated nuts and washers.
Published: 16/02/2018
Pages: 46
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Application
1.3 Referenced documents
1.4 Definitions
1.5 Marking
1.5.1 Bolts
1.5.2 Nuts
1.5.3 Washers
1.6 Designation
1.6.1 Bolts
1.6.2 Nuts
1.6.3 Flat washers
1.6.4 Helical spring washers
1.7 Product requirements
1.7.1 General
1.7.2 Dimensions, tolerances, materials and mechanical properties
1.7.3 Galvanized nut threading process
1.7.4 Finish and coating
1.7.5 Functional characteristics of the assembly
2 Bolts
2.1 Method of manufacture
2.2 Shape, dimensions and finish
2.2.1 Head
2.2.2 Length
2.2.3 Ends
2.2.4 Screw threads
2.2.4.1 General
2.2.4.2 Tolerances
2.2.5 Thread length
2.2.6 Squareness, concentricity and symmetry of bolts
2.2.6.1 Squareness of bearing face
2.2.6.2 Concentricity of shank to screw thread measured as true position
2.2.6.3 Symmetry of head to shank measured as true position
2.2.7 Chamfering and washer facing
2.2.8 Shank
2.2.8.1 Diameter
2.2.8.2 Straightness
2.2.9 Underhead fillet
2.2.10 Finish
2.2.10.1 General
2.2.10.2 Surface roughness
2.2.10.3 Surface finish and coating
2.3 Materials and mechanical properties
2.4 Test methods for bolts
2.4.1 General
2.4.2 Determination of shear strength
2.4.3 Double shear test fixture
3 Nuts
3.1 General
3.2 Shape, dimensions and finish
3.3 Materials and mechanical properties
3.4 Finish
3.5 Test methods for nuts
4 Flat washers
4.1 Shape, dimensions and finish
4.2 Flatness
4.3 Finish
4.3.1 General
4.3.2 Surface roughness
4.3.3 Surface finish and coating
4.4 Materials and mechanical properties
5 Helical spring washers
5.1 Shape and dimensions
5.1.1 General
5.1.2 Spring washer section
5.1.3 Thickness
5.1.4 Coiling
5.2 Material and mechanical properties
5.2.1 Material
5.2.2 Chemical composition
5.2.3 Heat treatment
5.3 Finish
5.3.1 General
5.3.2 Hot dip galvanizing
5.4 Test methods for spring washers
5.4.1 Hardness test
5.4.1.1 Vickers hardness
5.4.1.2 Rockwell hardness
5.4.2 Twist test
5.4.3 Closure test for permanent set
5.4.4 Embrittlement test
6 Identification, testing and test reports
6.1 General
6.1.1 Availability of test reports
6.1.2 Transmission of test reports
6.2 Identification
6.3 Testing and test reports
6.3.1 General
6.3.2 Minimum requirements for test reports
6.4 Testing of dimensional requirements
6.4.1 Bolts
6.4.2 Nuts
6.4.3 Flat washers
6.4.4 Helical spring washers
6.5 Testing of mechanical properties
6.5.1 Bolts
6.5.2 Nuts
6.5.3 Flat washers
6.5.4 Helical spring washers
6.6 Testing of functional characteristics
Appendix A
A1 General
A2 Derivation of equations for the determination of clamping length
A2.1 Minimum clamping length
A2.2 Maximum clamping length
Appendix B
B1 Scope of appendix
B2 Initial type testing
B2.1 General
B2.2 Minimum sampling and testing plan
B3 Factory production control
B3.1 General
B3.2 Manufacturing controls
B3.2.1 Raw materials and components
B3.2.2 Manufacturing equipment
B3.2.3 Traceability and marking
B3.2.4 Nonconforming product
B3.2.5 Corrective action
B3.2.6 Surveillance auditing of the manufacturing process
B3.2.7 Modifications
B3.3 Production testing
B3.3.1 Product sampling and testing plan
B3.3.2 Testing equipment
B3.3.3 Recording and analysis of test results
B3.3.4 Review of the sampling and testing plan
B3.3.5 Corrective actions
B4 Nonconforming product
B4.1 General
B4.2 Retests
B5 Documentation
Appendix C
C1 General
C2 Information to be supplied by the purchaser
C3 Inspection
Cited references in this standard
[Current]
Mechanical properties of fasteners made of carbon steel and alloy steel, Part 1: Bolts, screws and studs
[Current]
Metallic materials — Vickers hardness test, Method 1: Test method (ISO 6507-1:1997, MOD)
Content history
[Superseded]
AS NZS 1559 1997 Fasteners - Bolts, nuts and washers for tower construction
DR AS 1559:2017
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