Technology-Driven: AYA Custom Nuts Help Brazilian Automakers Overcome Diverse Demand Challenges
Aug 29, 2025

In the context of the increasingly fierce global competition in the automotive industry, Brazil, a core hub for automobile production in Latin America, is facing a series of new challenges. Local automakers need to pursue higher production efficiency and better lightweight design while ensuring the stable performance of vehicles under harsh conditions such as high temperature and humidity, salt spray corrosion, and complex road conditions. Against this backdrop, the role of key fasteners like nuts has become increasingly prominent - for Brazilian automakers, choosing the right fasteners is equivalent to holding the "lifeline" of vehicle safety and performance.
Precisely for this reason, customized nut solutions are gradually replacing standard parts and becoming the preferred choice for Brazilian automakers. AYA, a global supplier of customized fastening solutions, has long been deeply engaged in this trend and has become a reliable long-term partner for Brazilian automakers.
BRAZILIAN AUTOMOBILE MANUFACTURING MARKET: COMPLEX CHALLENGES BEHIND NEW DEMANDS
Brazil is the 8th largest automobile-producing country in the world, with an annual automobile output exceeding 2.3 million units in 2024. However, the working conditions faced by local automakers are extremely complex, imposing strict requirements on fasteners:
- Coastal areas: Under the erosion of high-humidity air and severe salt spray, the corrosion rate of ordinary carbon steel bolts is 2.3 times that in inland areas.
- Southern winters: In low-temperature environments, the fracture risk of carbon steel bolts is 37% higher than that in temperate regions.
- New energy vehicle sector: Lightweight design and high safety need to be balanced simultaneously. The fastening links of battery modules, chassis, and vehicle bodies all require support from higher technical standards.
For Brazilian OEMs, continued reliance on traditional standard parts may not only result in inefficient assembly and higher maintenance costs, but also pose safety risks. Therefore, customized nuts have become a core supporting force for the transformation of the local automotive industry.
AYA CUSTOM NUTS: TECHNICAL SOLUTIONS PRECISELY MATCHING THE BRAZILIAN MARKET
In response to the special needs of Brazilian automakers, AYA has built a comprehensive nut customization capability, forming a full-chain technical support system covering materials, production, and services:
Material Upgrade: Confronting the Test of Extreme Environments
- Low-temperature high-strength alloy steel: At an extremely low temperature of -40°C, the impact absorption capacity is increased by 60%, completely solving the problem of bolts being prone to fracture in cold regions.
- Magnesium-aluminum alloy nuts: The density is 60% lower than that of traditional steel, while the tensile strength can still reach 450MPa, providing an optimal solution for the lightweight needs of new energy vehicles.
- Zinc-nickel alloy plated carbon steel: Verified by salt spray tests, its corrosion resistance is 5 times higher than that of traditional galvanized parts, perfectly adapting to the application scenarios of automakers in coastal areas.
High-Standard Production: Conforming to International Automotive Industry Norms
All customized nuts strictly comply with core automotive industry standards such as IATF 16949 and ISO. Every detail, from thread precision and anti-loosening structure to anti-rust coating, is strictly controlled to ensure stability and consistency during large-scale mass production.
Whole-Process Services for Automakers: Covering the Entire Project Lifecycle
- R&D stage: Through the APQP (Advanced Product Quality Planning) process, in-depth collaboration with customer engineers is carried out to jointly optimize the nut design scheme.
- Mass production stage: Relying on the PPAP (Production Part Approval Process) support system to ensure the timeliness and quality stability of batch delivery.
-After-sales stage: A 24-hour cross-time zone response mechanism is established, and a Portuguese-speaking service team is equipped to provide efficient support for local Brazilian engineering and procurement teams.
Beyond Products: Providing Systematic Fastening Solutions
AYA's services go far beyond "supplying nuts". In response to specific needs such as the anti-loosening of battery modules and lightweight connection of vehicle bodies, AYA provides full-scenario solutions for automakers through technical means such as simulation tests and digital traceability systems, fundamentally reducing assembly risks.
DIFFERENTIATED COMPETITION: THE UNIQUE VALUE OF AYA
Currently, most fastener suppliers in the Brazilian market still focus on the sales of standardized products based on the "spot + batch" model. Although this model can meet basic needs, it is difficult to cope with the complex challenges of the Brazilian market, mainly having three major shortcomings: first, the products have strong versatility and cannot adapt to extreme working conditions such as salt spray, low temperature, and strong vibration; second, they lack engineering consulting capabilities, requiring customers to solve assembly problems by themselves; third, the services are limited to sales and delivery, lacking full-process quality tracking.
The differentiated value of AYA lies precisely in the accurate resolution of these pain points:

BRAZILIAN MARKET TREND: CUSTOMIZED FASTENERS ARE ENTERING A GOLDEN PERIOD
A variety of industry data show that the Brazilian industrial fastener market is growing steadily, and the demand for customization is continuing to rise:
Industry analysis points out that "customization, high-performance materials, lightweight design, and intelligent manufacturing" will be the four core development directions of the Brazilian fastener market in the future. This means that choosing a suitable fastener partner has become the key for Brazilian automakers to enhance their core competitiveness.
CONCLUSION: AYA - THE "CUSTOMIZATION PARTNER" OF BRAZILIAN AUTOMAKERS
For Brazilian automakers, AYA is by no means a mere supplier, but a strategic ally with the dual roles of "technical consultant" and "customization partner". It not only helps solve complex challenges such as low temperatures in the south, salt spray in coastal areas, and lightweight requirements for new energy vehicles but also ensures vehicle safety and assembly efficiency with internationally certified customized products. Furthermore, through localized services and full-lifecycle support, it ensures the seamless connection of projects from R&D to delivery.
In the future, AYA will continue to uphold its brand commitment of "Fasteners, as you asked", work hand in hand with Brazilian automakers to jointly create safer, lighter, and more durable automotive products, and help the local automotive industry gain an advantage in the global competition.







