Bag of 100ea Aircraft Cherry Rivets. P/N CR9563R-5-4 or MS20600-M5W4. Alternate P/Ns MS20600M5W4, RV290-5-4. NSN: 5320-01-036-8546.
Rivet specs are:
Grip Range .188 to .250 Hole size .155 to .159 No certification. Bag of 100ea retails for over $200!!