BS EN ISO 2702:2022 2023
$102.76
Fasteners. Heat treated tapping screws. Mechanical and physical properties
| Published By | Publication Date | Number of Pages |
| BSI | 2023 | 20 |
This document specifies the mechanical and physical properties of heat treated tapping screws made of steel, with thread sizes ST2,2 to ST9,5 in accordance with ISO 1478, when tested at the ambient temperature range of 10 °C to 35 °C, and the related test methods. Tapping screws are designed to form mating threads in sheet metals, without their own threads being deformed. Tapping screws are not intended to be pretensioned by design, even though they can experience varying degrees of low-level tensile stress after installation.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 4 | European foreword Endorsement notice |
| 6 | Foreword |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions 4 Materials |
| 8 | 5 Mechanical and physical properties 5.1 General 5.2 Surface hardness 5.3 Case-hardened depth |
| 9 | 5.4 Core hardness 5.5 Microstructure 5.6 Thread-forming ability 5.7 Torsional strength 5.8 Ductility |
| 10 | 6 Test methods 6.1 General 6.2 Surface hardness test 6.3 Case-hardened depth determination |
| 11 | 6.4 Core hardness test |
| 12 | 6.5 Microstructure test 6.6 Drive test |
| 13 | 6.7 Torsional test |
| 14 | 6.8 Ductility test |
| 15 | 7 Inspection 7.1 Manufacturer’s inspection 7.2 Supplier’s inspection |
| 16 | 7.3 Purchaser’s inspection 7.4 Delivery of test results 8 Marking and labelling 8.1 General 8.2 Marking on screws 8.3 Marking on packages (labelling) |
| 17 | Bibliography |
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