AS/NZS 1112:1996

AS/NZS 1112:1996 ISO METRIC HEXAGON NUTS, INCLUDING THIN NUTS, SLOTTED NUTS AND CASTLE NUTS

PREFACE

CONTENTS

1 SCOPE

2 REFERENCED DOCUMENTS

3 DEFINITIONS

3.1 Squareness tolerance

3.2 Symmetry tolerance

4 METHOD OF MANUFACTURE

5 SHAPE, DIMENSION AND FINISH

5.1 General

5.2 Screw threads

5.2.1 General

5.2.2 Tolerances

5.3 Chamfering, washer facing and countersinking

5.3.1 Chamfering and washer facing

5.3.2 Countersinking

5.4 Squareness and symmetry

5.4.1 Squareness of thread to bearing face(s)

5.4.2 Symmetry of hexagon

5.5 Finish

5.5.1 General

5.5.2 Uncoated nuts

5.5.3 Coated nuts

6 MATERIALS AND MECHANICAL PROPERTIES OF STEEL NUTS

7 TEST METHODS FOR STEEL NUTS

8 MARKING

9 DESIGNATION

APPENDIX A - RECOMMENDED HEXAGON NUT SIZES FOR THREADS GREATER THAN M64

APPENDIX B - BASIS FOR DERIVATION OF TOLERANCES

APPENDIX C - RECOMMENDED GAUGE AND METHOD FOR CHECKING THE SQUARENESS OF THE THREAD TO THE FACE OF THE NUT

APPENDIX D - RECOMMENDED COMBINATIONS OF STEEL NUTS AND EXTERNALLY THREADED STEEL FASTENERS

D1 RECOMMENDED COMBINATIONS OF NORMAL, SLOTTED AND CASTLE NUTS WITH BOLTS AND SCREWS

D2 THIN-NUT FAILURE LOADS

APPENDIX E - A SUGGESTED AUDIT SAMPLING PLAN FOR MECHANICAL PROPERTIES