D3235: Determining ideal insect pins for entomological research

This research study aims to compare the structural integrity and archival quality of thirteen different brands of commonly used No. 2 insect pins, noted to be widely used by entomologists. These pins are used to pin insects for preservation, either through the pinning method or the point mount method. For both methods, the pin must maintain its structural integrity for hundreds of years to protect the specimen from permanent damage. The pin's head and shaft are both crucial components that affect this research, as a broken head makes it difficult to manipulate the insect, and a bent or broken shaft can cause mobility issues and damage to the specimen. This project will focus on testing the bending resistance of the pins using a mechanical bend test and a corrosion test using a salted water spray in a container. The study's results will contribute to improving the archival strength and longevity of insect pins, supporting the proper entomological studies of specimens in the future.