Stainless steel bolts are a workhorse of the fastener industry. Made from a steel alloy that contains a minimum of 10.5 percent chromium, there are over 150 different grades of stainless steel and a variety of finishes available. Located in Canton, MA, Monroe EFI stocks a wide range of stainless steel fasteners to meet the needs of diverse industries.
Stainless steel bolts are often chosen for their corrosion resistance. They are highly popular for a wide range of applications in the aerospace, marine, and commercial food industries. They are considered one of the best all-around fasteners because stainless steel, in addition to offering excellent corrosion resistance, provides good strength at a cost-efficient price.
However, there are several things worth remembering about stainless steel bolts:
- The higher the type number, the greater the corrosion resistance.
- The greater the corrosion resistance, the lower the strength of the steel.
- Stainless steel is a relatively poor electrical conductor, making stainless steel bolts a good choice for applications requiring low conductivity.
While there are over two dozen grades of stainless steel, many are not used for fasteners – for example, 420 and 440 stainless are popular knife blade steels. And, for the sake of simplicity, many fastener product professionals treat 18-8, 304, and A2 stainless grades as nearly identical, thus, these classifications are often used interchangeably.
There are several types of stainless steel from which to choose when considering which stainless steel bolts to purchase. The most commonly used stainless grades are 18-8 (basic stainless), 304, and 316. Which is best for your application? 18-8 stainless is less corrosion-resistant while 304 offers more resistance, and 316 is even more resistant to corrosion. As a result, 304 stainless steel bolts are considered good commercial-grade fasteners while 316 stainless is considered marine grade because of its higher corrosion resistance to salt water and rust.
To learn more about stainless steel bolts, contact the stainless steel experts at Monroe EFI. We can recommend the right stainless steel bolts for your specific application.