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Chavesbao

Self locking nuts

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DIN 980 ZP

ISO 7042

Hexagon nuts with thread lock in zinc-plated finish

DIN 980 A2

ISO 7042

Hexagon nuts with thread lock in stainless steel A2

DIN 980 A4

ISO 7042

Hexagon nuts with thread lock in stainless steel A4

DIN 982 ZP

ISO 7040

Hexagon nuts with polyamide thread lock high type in zinc-plated finish

DIN 982 A2

ISO 7040

Hexagon nuts with polyamide thread lock high type in stainless steel A2

DIN 982 A4

ISO 7040

Hexagon nuts with polyamide thread lock high type in stainless steel A4

DIN 985 ZP

ISO 10511

Hexagon self locking nylon nut in zinc-plated finish

DIN 985 ZP S

ISO 10511

Hexagon self locking nylon nut in zinc-plated finish, sold in small box

DIN 985 FP ZP

ISO 10511

Hexagon self locking nylon nut with fine pitch thread and zinc-plated finish

DIN 985.8 ZP

ISO 10511

Hexagon self locking nylon nut, in zinc-plated finish and quality 8

DIN 985.8 FP ZP

ISO 10511

Hexagon self locking nylon nut with fine pitch thread, in zinc plated finish and quality 8

DIN 985.10 ZP

ISO 10511

Hexagon self locking nylon nut, in zinc-plated finish and quality 8

DIN 985 A2

ISO 10511

Hexagon self locking nylon nut in stainless steel A2

DIN 985 A4

ISO 10511

Hexagon self locking nylon nut in stainless steel A4

Self-locking nuts to prevent loosening due to vibrations

Self-locking nuts incorporate a locking system that prevents the screw from loosening, even in joints subjected to vibrations, impacts or dynamic loads. Thanks to their locking system, either by nylon insert or thread deformation, they prevent the screw from loosening and reduce the need for additional safety washers, optimising assembly time and increasing the safety of the joint.

They are used in sectors such as automotive, industrial machinery, metal construction, railways and agriculture, where mechanical requirements and safety are a priority.

Types of self-locking nuts and applicable standards

  • DIN 985 (ISO 10511) self-locking hex nuts: with nylon insert that generates friction on the screw thread and ensures locking even in the presence of vibrations. Also available in fine pitch (DIN 985 FP) and in grades 8 and 10.
  • DIN 980 (ISO 7042) conical self-locking nuts: with a V-shaped conical base that presses against the support surface to prevent loosening without the need for additional washers.
  • DIN 982 (ISO 7040) high lock nuts: with increased height and slots on the top, they offer more uniform tightening and greater resistance in demanding assemblies.

In all cases, it is essential to observe the recommended tightening torque to avoid damage to the locking system and maintain the effectiveness of the fastening.

Advantages of self-locking nuts

The different types of DIN 980, 982 and 985 self-locking nuts share a number of benefits that make them a benchmark choice for professionals:

  • They prevent loosening due to vibrations or dynamic loads.
  • They reduce the need for periodic readjustments, optimising maintenance time and costs.
  • They are easy to install and remove with standard tools.
  • In many cases, they replace the use of lock washers.

Special manufacturing to specification

At CHAVESBAO we develop customised self-locking nuts, adapted to projects that require specific dimensions, materials or coatings, always complying with DIN and ISO standards.

Do you need a special fastener for a demanding environment?

Our technical team will assist you in the development of customised products, always with a guarantee of quality and regulatory compliance.

Do you need more information?

CHAVES BILBAO, S.L. informs you that the personal data provided voluntarily on this website, the purpose, intended transfers and other circumstances of which are communicated when the personal data is collected, may, depending on the specific case, have any of the following purposes: responding to your request, complaint or question, maintaining the established relationship, the comprehensive and commercial management of customers, accounting and invoicing or sending of communications of news and activities related with CHAVES BILBAO, S.L., including by electronic means. The data included in our files is absolutely confidential and will be processed with the utmost confidentiality and in compliance with all the requirements set out in the General Data Protection Regulation (GDPR) of the 27th of April 2016. The data is registered in our files for the time necessary for the purpose for which it was collected. The period during which the personal data will be kept will be that established by current legislation and always during the period of the provision of the service for which it was provided. We do not recommend sending personal data that is classified as highly confidential by data protection legislation, such as that related to health, as it is not sent coded or encrypted. Therefore, if you send this type of data, it will be at your own risk. The user may at any time exercise their rights to access, rectify, oppose, cancel, limit processing or request its portability in accordance with the General Data Protection Regulation (GDPR) of the 27th of April 2016, sending a letter along with a photocopy of their DNI identity document, to CHAVES BILBAO, S.L. C/Bizkargi, 6 Polígono Industrial Sarrikola 48195 Larrabetzu - Bizkaia - Spain, or using the email address info@chavesbao.com.
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