Fits:  1978-79 OEM 930 front rotors and hats.  Also for all 1969-89 911 using 930 front calipers with stock 911 "narrow" hubs.
 
Hardware set works in conjunction with 78-79 930 front rotors and 12 hole rotor hats.  Set completes 2 rotors.
 
CNC machined semi-floating bobbins.
Aircraft grade bolts, washers, and jet nuts.
USA
 
12-Hole rotor (disc) hats are available here:
https://www.rsrproducts.com/product-page/rebel-rsr-products-930-12-hole-rotor-hats-pair