ISO 7720:2025

Fasteners — Prevailing torque hexagon nuts — High nuts (all metal) with slot(s)

Datum objavljivanja: 10. 6. 2025.

Опште информације

Trenutna faza: 60.60 Effective date: 10. 6. 2025.

Inicijator: ISO

Pripada: ISO/TC 2/SC 12

Vrsta: Međunarodni standard

ICS: 21.060.20

Jezik: engleski francuski

Kupovina

Status: Objavljen

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Apstrakt

This document specifies the characteristics of prevailing torque (all metal) hexagon high nuts with slot(s), in steel and stainless steel, with metric coarse pitch thread M5 to M39, and with product grades A and B.
NOTE These nuts are designed with mmin as specified ISO 4032 and with an overall height h greater than in ISO 7042, in order to accommodate the prevailing torque feature with slot(s); this height h contributes to the nut resistance due to the number of engaged threads. hmin values have been calculated as a function of hmax together with a ratio hmax/D that progresses regularly with increasing diameter; therefore, the tolerance (hmax – hmin) does not follow the ISO code system for tolerances (IT system).
If in certain cases other specifications are requested, property classes and stainless steel grades can be selected from ISO 898-2 or ISO 3506-2.

Životni ciklus

PRETHODNO

POVUČEN
ISO 7720:2012

TRENUTNO

OBJAVLJEN
ISO 7720:2025
60.60 Standard objavljen
10. 6. 2025.

Nacionalna preuzimanja

dnaSRPS EN ISO 7720:2025

ISS

Elementi zavrtanjskih veza- Šestostrane navrtke sa zadržavajućim momentom - Visoke navrtke (potpuno metalne) sa prorezom(ima)

50.99 Definitivni tekst nacrta standarda odobren za objavljivanje

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