Aircraft Tool Supply - How to determine the length of a rivet Measure the grip thickness of the section to be riveted (A+B) and add to that 1.5 times the rivet diameter.
Tubular Rivets for Jalousie Clips
350808-7, 1/4 x 1/2 STEEL SOLID RIVET,, TRUSS HEAD, ZINC FINISH - Hanson Rivet Online Store