427M55206-A2+2 Thats what it says on them .816 dia .478 hole .261 thick approx 80 pcs available 4 for $1.00 plus postage Lloyd Godsey KK7IZ 1315 N. Udall Circle Mesa, Az 85203 1-480-620-7145 (cell) Please visit my web page http://members.cox.net/kk7iz/kk7iz/index.htm kk7iz at cox.net