I realize that you are in a rush but Fastenal carries these bolts and can often get them in overnight if the store needs to order. They also offer overnight delivery. Here is the link to the 18mmX1.5X60mm bolts they carry.
http://www.fastenal.com/web/products/fasteners/bolts/cap-screws-hex-bolts/_/Navigation?term=&termca=&termpx=&sortby=webrank&so rtdir=descending&searchmode=productSearch&zipcode= &filterByStore=&filterByVendingMachine=&r=~|catego ryl1:%22600000%20Fasteners%22|~%20~|categoryl2:%22 600001%20Bolts%22|~%20~|categoryl3:%22600003%20Cap %20Screws%209and%20Hex%20Bolts%22|~%20~|attrdiamet er:124100|~%20~|sattr03:^Steel$|~%20~|attrlength:1 66200|~%20~|sattr07:^1.5$|~
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