“A” rivets are “soft”. They are fabricated from 1100-grade aluminum and have a tensile strength of 16,000 PSI. “AD” rivets are fabricated from 2117 aluminum and heat treated to the T4 condition. They have a shear strength of 26,000 PSI and a tensile strength of 38,000 PSI. Prices below are for per piece.
AN426 are 100° rivets.