HERE ARE 2 NOS FRONT BRAKE DRUM PILOT RIVETS WHICH FIT AND ARE CORRECT FOR THE FOLLOWING BUICKS:
1934-1939 [40 SERIES]
1940 THRU 1956 ALL SERIES EXCEPT SKYLARKS [THEY WERE CHROMED]
1957 ALL EXCEPT SERIES 75 AND 75

THESE ARE THE STUDS THAT ALLOW YOU TO MOUNT THE WHEEL BEFORE INSERTING THE WHEEL BOLTS. 2 IN A PACKAGE SO THIS IS ALL YOU NEED FOR THE FRONT. STILL WRAPPED IN THEIR ORIGINAL FACTORY PACKAGING. 

GROUP NUMBER 6.337 AND PART NUMBERS 1286067 AND 1179470 [THEY LIKED TO CHANGE NUMBERS A  LOT]. 
SHIPPED GLOBALLY USPS PRIORITY MAIL 
WE HAD 2 PACKAGES OF THESE AND SOLD 1. HERE IS THE LAST 1.