If replacing a 2024 rivet with a 2117 rivet, how do you determine the appropriate size?

When replacing a 2024 rivet with a 2117 rivet, understanding the differences in material properties and strength is crucial. 2024 rivets are made from a high-strength aluminum alloy, while 2117 rivets are intended for general application and have different strength characteristics.

Choosing to use the next larger size for rivets that are 5/32" or smaller when switching from 2024 to 2117 ensures proper load-bearing capabilities and structural integrity. The 2117 rivet may not have the same tensile strength as the 2024 rivet, so increasing the size compensates for this difference and helps maintain the overall strength of the assembly. This practice follows the guidelines in aviation maintenance regarding rivet replacements, ensuring safety and performance standards are upheld.

Using the same size rivet without adjusting for differences in material strength can lead to potential structural failures, making it essential to heed the size adjustment recommendation. Likewise, using any size rivet or only larger rivets can compromise the structural integrity if not considered carefully regarding the specific application and material properties. The best practice balances the need for strength with proper dimensions to adhere to aviation standards and regulations.