prEN ISO 2702

SLOVENSKI STANDARD
01-junij-2019
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Fasteners - Heat-treated steel tapping screws - Mechanical and physical properties
(ISO/DIS 2702:2019)
Mechanische Verbindungselemente - Wärmebehandelte Blechschrauben - Mechanische
und physikalische Eigenschaften (ISO/DIS 2702:2019)
Fixations - Vis à tôle en acier traité thermiquement - Caractéristiques mécaniques et
physiques (ISO/DIS 2702:2019)
Ta slovenski standard je istoveten z: prEN ISO 2702
ICS:
21.060.10 Sorniki, vijaki, stebelni vijaki Bolts, screws, studs
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT INTERNATIONAL STANDARD
ISO/DIS 2702
ISO/TC 2/SC 13 Secretariat: DIN
Voting begins on: Voting terminates on:
2019-04-05 2019-06-28
Fasteners — Heat-treated self-tapping screws —
Mechanical and physical properties
ICS: 21.060.10
THIS DOCUMENT IS A DRAFT CIRCULATED
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FOR COMMENT AND APPROVAL. IT IS
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NOT BE REFERRED TO AS AN INTERNATIONAL
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ISO/DIS 2702:2019(E)
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©
PROVIDE SUPPORTING DOCUMENTATION. ISO 2019

ISO/DIS 2702:2019(E)
© ISO 2019
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ISO/DIS 2702:2019(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Materials . 1
5 Mechanical and physical properties . 1
5.1 General . 1
5.2 Surface hardness . 1
5.3 Case-hardened depth. 1
5.4 Core hardness . 2
5.5 Microstructure . 2
5.6 Thread-forming ability . 2
5.7 Torsional strength . 2
6 Test methods . 3
6.1 General . 3
6.2 Surface hardness test . 3
6.3 Case-hardened depth determination . 3
6.4 Core hardness test . 4
6.5 Microstructure test . 4
6.6 Drive test . 4
6.7 Torsional test . 5
ISO/DIS 2702:2019(E)
Foreword
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