Stainless Steel Fasteners

Stainless steel fasteners are characterised by their durability and resistance to corrosion. This is because stainless steel is an alloy of iron with carbon, chromium and other elements, which give it an anti-corrosive property and a high resistance to oxidation. This material is especially suitable for applications exposed to humid or corrosive environments.

In CHAVESBAO we have more than 3.400 references in stainless bolts, stainless washers, stainless nuts, stainless rods and stainless cable and chain accessories, among other items.

Tornillos, tuercas y arandelas en acero inoxidable A2 y A4

Advantages of Stainless Steel Fasteners


High corrosion resistance


High durability

Meteo Adversa.png

Ability to withstand adverse weather conditions


Higher level of hygiene in fasteners


Tolerance of extreme temperatures


Optimum torque retention


Low maintenance

100 Reciclable.png

100% recyclable

Stainless Steel Range

Stainless Steel Screws

Stainless steel screws are essential fastening elements due to their strength and durability. Stainless steel screws are resistant to humidity and extreme temperatures, making them ideal for applications in maritime environments, the food industry and the automotive industry, among others.

At CHAVESBAO we have hexagonal, allen, metal thread, car body, round head, sheet metal thread and self-drilling screws in A2 (AISI 304) and A4 (AISI 316) stainless steel.

Tornillos en acero inoxidable
Tuercas en acero inoxidable

Stainless Steel Nuts

Stainless steel nuts are used for fastening and fixing joints that require a high resistance to corrosion. Nuts made of stainless steel are used in applications exposed to humid environments or extreme temperatures.

At CHAVESBAO we have hexagonal, self-locking, square, blind and butterfly nuts in A2 (AISI 304) and A4 (AISI 316) stainless steel.

Stainless Steel Washers

Stainless steel washers are used to protect the fixing parts when greater durability is required in outdoor installations or damp environments. Washers made of stainless steel are recommended for use in the naval, food or automotive industries.

In CHAVESBAO we have flat, grower and toothed washers in stainless steel in A2 (AISI 304) and A4 (AISI 316) stainless steel.

Arandelas en acero inoxidable
Accesorios para cable y cadena inoxidables

Stainless Cable and Chain Fittings

Stainless steel cable and chain accessories are used to fix and protect cables and chains that are exposed to adverse weather conditions where other materials may rust.

At CHAVESBAO we have a range of eyebolts, cable clamps, shackles, turnbuckles, thimbles and carabiners in A2 (AISI 304) and A4 (AISI 316) stainless steel.

Other Stainless Steel Products

We have stainless steel threaded rods, as well as pins and rings also manufactured in stainless steel.

Anillos y pasadores en acero inoxidable


Stainless screws are those made of stainless steel, which is an alloy of iron and chromium. There are different types of stainless steel depending on the percentage of chromium and the other elements they contain, such as nickel or molybdenum. The most common stainless steel bolts are A2 and A4, but there are also others according to the AISI (American Iron and Steel Institute) standard classification.

It is necessary to choose stainless steel screws when the fastening is exposed to adverse weather conditions, high temperatures or humid environments over time. An example of this type of fastenings are the marine walkways or the machinery used in the food industry.

Stainless steel is a material that guarantees durability and corrosion resistance, making it the ideal solution in harsh environments. Thanks to this resistance to corrosion, the structural, aesthetic and hygienic integrity of the stainless screws is maintained, avoiding signs of wear throughout their useful life.

A2 and A4 stainless steel are two types of steel with different properties, applications and characteristics. The main difference lies in the mechanical and corrosion resistance levels of each of them.

Depending on the specifications and requirements of each application, one of these stainless steels will be selected to guarantee a good performance and a long service life of the installation, especially outdoors or indoors with environmental condensation.

A2 is suitable for indoor spaces with high condensation frequency and high contamination from production processes. Outdoors it is used in temperate atmospheric environments with high pollution or chloride substance effect. Also in tropical or subtropical areas with low atmospheric pollution.

A4 is a stainless steel more suitable for applications in humid and aggressive environments. Indoors it is suitable for spaces with very high condensation frequency or production contamination. Outdoors it is used in temperate and subtropical areas with atmospheric environment with very high pollution or significant chloride effect.

Stainless steel screws are metal parts that are used to join or fix different materials, such as wood, metal, plastic, etc. Stainless steel screws are characterised by their resistance to corrosion, oxidation, wear and tear and high temperatures. Stainless steel screws are used in different industries, such as automotive, aeronautics, naval, food, pharmaceutical, chemical and construction.

The appearance of stainless steel is shiny and silvery. In addition, being a material that presents greater hardness and resistance, it does not bend or scratch easily.

It is also possible to know if a screw is of stainless steel through the magnetisation. Iron is magnetic, but stainless steel alloys are not, so if when you bring a magnet close to the screw it does not stick, it is probably stainless steel. Note, however, that stainless steel alloys with nickel can be slightly magnetic.

Steel and stainless steel are two types of metals that are identical in that they both have iron and carbon as their basic ingredients. However, they differ in the alloy content, as stainless steel contains at least 10.5% chromium, while carbon steel has an alloy of less than 10.5%.

It is this chromium layer that protects stainless steel from corrosion and oxidation. Carbon steel does not have it and can therefore rust easily.

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
Read more