Quick view Add to Cart F6-40 Dzus Stud - 3/8" Dia Stud .400 Length This is a part number F6-40 Stud manufactured by Dzus, it's ready to be part of various aircraft restoration projects!ABOUT: Dzus Fasteners are made of heat-treated and cadmium plated nickle steel*, and consist of a grommet, spring, and stud, the... Was: $6.75