ISO 2320:2015
p
ISO 2320:2015
61175

Abstract

 Preview

ISO 2320:2015 specifies the functional properties for prevailing torque steel nuts when tested at an ambient temperature range of +10 °C to +35 °C. It includes a combined test method to determine the prevailing torque properties and the torque/clamp force properties at the same time.

It applies to prevailing torque all metal type nuts and prevailing torque non-metallic insert type nuts:

- with triangular ISO thread in accordance with ISO 68‑1;

- with diameter/pitch combination in accordance with ISO 261 and ISO 262;

- with coarse pitch thread M5 to M39 or with fine pitch thread M8 × 1 to M39 × 3;

- with thread tolerances in accordance with ISO 965-2;

- with mechanical properties in accordance with ISO 898‑2;

Prevailing torque values specified in this standard are based on laboratory test conditions.

NOTE 1 Actual prevailing torques in practical application can vary.

NOTE 2 All metal type nuts conforming to the requirements of this International Standard are used in applications ranging from −50 °C to +150 °C.

NOTE 3 Non-metallic insert type nuts conforming to the requirements of this International Standard are used in applications ranging from −50 °C to +120 °C.

WARNING ? Temperatures outside the ambient temperature range can influence the functional properties (torque/clamp force and prevailing torque properties), see Annex A.


General information 

  •  :  Published
     : 2015-12
  •  : 5
     : 20
  •  : ISO/TC 2/SC 12 Fasteners with metric internal thread
  •  :
    21.060.20 Nuts

Buy this standard

en
Format Language
std 1 118 PDF
std 2 118 Paper
std 3 118 PDF + ePub
  • CHF118

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information.