5.8 - Stainless Steel Fastners

Raw Material ISO 898-1 Gr.5.8 Ed.2015
C % 0.55 max.
P % 0.050 Max.
S % 0.060 Max.
Stainless Steel 5.8 Fasteners Manufacturers & Exporters

Stainless Steel 5.8 Fasteners Manufacturers, Exporters & Suppliers in India


Stainless Steel 5.8 Fasteners are an excellent choice when high strength and corrosion resistance are required. They are hardened, cold work-hardened, and are widely available in sizes ranging from M5 to M24. Compared to standard steel fasteners, stainless fasteners are more durable and more expensive. Listed below are the benefits of using Stainless Steel 5.8 Fasteners. 


Stainless steel is an alloy of low carbon steel and chromium for enhanced corrosion resistance. Unlike hardened steel fasteners, stainless fasteners will not rust, pit, or scratch, and will continue to retain their anti-corrosion properties even if damaged. 


Unlike hardened steel fasteners, stainless fasteners are also less susceptible to galling and corrosion. It is highly recommended that you do not use stainless fasteners with aluminum.

Stainless Steel 5.8 Fasteners are magnetic and resistant to corrosion. They are not available in any other stainless steel grade, but 18-8 has the highest corrosion resistance. 


Stainless fasteners made of 18-8 are the most popular type of stainless steel. Its properties are excellent for applications in extremely corrosive conditions. You can find fasteners in grades 303 and 304. 10.9 A2 is the most common stainless metric fastener grade, while A4 is for acid and corrosion-resistant applications.


When choosing a fastener, you need to consider a few things. Firstly, what type of material will be used? Steel, stainless steel, aluminum, brass, titanium, and plastic are all options to consider. Depending on the application, steel will determine how strong and durable the fastener is. Carbon steel, for example, is relatively cheap and has broad capabilities. As a result, it is widely used in fasteners.


The Grade 5.8 Nut is a tougher alloy than its counterparts and is commonly used in the automotive industry. The head of Grade 5.8 Bolt is marked with three radial lines that are evenly spaced. These nuts have 520 Mpa tensile strength and corresponding core hardness. The majority of Grade 5.8 Bolts are Western European, although you can request Eastern-made ones if needed.