Minimum Rivet Pitch in Aviation Structures

Aviation authorities (FAA, EASA) require a minimum rivet pitch of typically 2‑3 times the rivet diameter, depending on material thickness, joint design, and load requirements. For a 3.2 mm (1/8 in) rivet, pitch is usually 6.4‑9.6 mm (0.25‑0.38 in). Maximum pitch limits also apply to ensure load distribution. Engineers must follow the applicable airworthiness standards for each aircraft component.