Standard
UPDATE AVAILABLE
AS/NZS 1559:1997
[Superseded]Hot-dip galvanized steel bolts and associated nuts and washers for tower construction
Specifies dimensional material and marking requirements for single nut and double nut hot-dip galvanized steel bolts with associated nuts and washers for tower construction with ISO metric coarse pitch series threads in diameters from 12 mm to 30 mm inclusive and lengths up to 160 mm for single nut bolts, 125 mm for double nut bolts and from 180 mm to 270 mm for step bolts. Clamping lengths are tabulated in an appendix and equations for the determination of the clamping lengths are given.
Published: 05/06/1997
Pages: 24
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 (see Figure 1.1)
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 Washers
2 BOLTS
2.1 METHOD OF MANUFACTURE
2.2 SHAPE, DIMENSIONS AND FINISH
2.2.1 Heads
2.2.1.1 General
2.2.1.2 Chamfer
2.2.1.3 Washer face
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 tower bolts
2.2.6.1 Squareness of bearing face
2.2.6.2 Concentricity of shank to screw thread
2.2.6.3 Symmetry of head to shank
2.2.7 Shank
2.2.7.1 Diameter
2.2.7.2 Straightness
2.2.8 Underhead fillet
2.2.9 Finish
2.3 MATERIALS AND MECHANICAL PROPERTIES
2.3.1 Materials
2.3.2 Mechanical properties
2.4 TEST METHODS FOR TOWER 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 FINISH
4 WASHERS
4.1 SHAPE AND DIMENSIONS
4.2 FLATNESS
4.3 MATERIAL
4.4 FINISH
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
Cited references in this standard
[Current]
Mechanical properties of fasteners made of carbon steel and alloy steel, Part 2: Nuts with specified property classes — Coarse thread and fine pitch thread
[Superseded]
ISO metric hexagon nuts, including thin nuts, slotted nuts and castle nuts
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