We're actively sourcing hardware for the Diamond DA40 Diamond Star.
Request Parts via RFQCommon Parts Questions — Diamond DA40 Diamond Star
The DA40 uses AN3 through AN5 bolts extensively in control surface attach, landing gear fitting, and cowl attach. The T-tail configuration uses AN4 and AN5 hardware at the horizontal stabilizer attach. Diamond's IPC cross-references all hardware to standard AN and DIN specifications.
Many fastener specifications overlap between the DA40 and DA42, particularly in control hardware and wing attach. However, the DA42's heavier gross weight means some structural bolts are one size larger. Always verify against the specific model's IPC before substituting.