ISO 6157-2:1995
Fasteners — Surface discontinuities — Part 2: Nuts
Fasteners — Surface discontinuities — Part 2: Nuts
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 10
- Дата публикации:
- 20 июля 1995 г.
- Издание:
- ISO IS 6157 edition 1 version 1
- ICS:
- 21.060.20
Establishes limits for various types of surface discontinuities on nuts with nominal thread diameters from 5 mm up to and including 39 mm. Applies also for all mechanical property classes according to ISO 898-2 and ISO 898-6.
Abstract
Overview
ISO 6157-2:1995 - “Fasteners - Surface discontinuities - Part 2: Nuts” defines acceptable limits and inspection practices for surface defects on nuts. It covers nuts with nominal thread diameters 5 mm to 39 mm, product grades A and B, and all mechanical property classes referenced in ISO 898-2 and ISO 898-6 (unless otherwise agreed). The standard ensures that visible surface discontinuities do not impair the mechanical or functional properties required by related fastener standards.
Key topics and technical requirements
- Types of surface discontinuities covered: cracks (quench, forging, inclusion, locking element, washer-retainer), shear bursts, bursts, seams, folds, voids, tool marks and general damages.
- Quantitative limits and definitions:
- Cracks: e.g., forging cracks - max two that extend across the bearing face, neither deeper than 0.05·d; no crack shall extend into the tapped hole beyond the first full thread; cracks in the first full thread ≤ 0.5·H1 (H1 = 0.541·P).
- Seams: permitted up to a depth of 0.05·d.
- Voids: depth h
Технические детали
- Технический комитет
- ISO/TC 2/SC 7 - Reference standards
- SKU
- ISO 6157-2:1995
Похожие стандарты
Упомянутые в описании и другие стандарты ISO
ISO 898-2:2012
ОтменёнMechanical properties of fasteners made of carbon steel and alloy steel — Part 2: Nuts with specified propert…
ISO 898-6:1988
ОтменёнMechanical properties of fasteners — Part 6: Nuts with specified proof load values — Fine pitch thread
ISO 8212:1986
ОтменёнSoaps and detergents — Techniques of sampling during manufacture
Overview Standard Reference: ISO 8212:1986 Title: Soaps and detergents - Techniques of sampling during manufacture ISO 8212:1986 defines standardized techniques for taking representative samples of s…
ISO 20662:2020
ДействующийShips and marine technology — Hopper dredger supervisory and control systems
Overview ISO 20662:2020 - Ships and marine technology: Hopper dredger supervisory and control systems (HD‑SCS) - specifies the components, structure, general requirements, and functional requirements…
ISO 3021:2023
ДействующийAdventure tourism — Hiking and trekking activities — Requirements and recommendations
Overview ISO 3021:2023 - Adventure tourism: Hiking and trekking activities - Requirements and recommendations defines safety-focused requirements and recommendations for hiking and trekking offered a…
ISO 3826-2:2008
ДействующийPlastics collapsible containers for human blood and blood components — Part 2: Graphical symbols for use on l…
Overview ISO 3826-2:2008 - "Plastics collapsible containers for human blood and blood components - Part 2: Graphical symbols for use on labels and instruction leaflets" defines a system of internatio…
ISO/IEC 24730-1:2014
ДействующийInformation technology — Real-time locating systems (RTLS) — Part 1: Application programming interface (API)
Overview ISO/IEC 24730-1:2014 specifies the Application Programming Interface (API) for Real‑Time Locating Systems (RTLS). The standard defines a minimal, interoperable boundary that lets application…
ISO 8668-5:1992
ДействующийAircraft — Terminal junction systems — Part 5: Detail specification for type 3 system
Overview - ISO 8668-5:1992 (Aircraft terminal junction systems, Type 3) ISO 8668-5:1992 defines the detail specification for Type 3 Terminal Junction Systems (TJS) used in aircraft electrical install…