This heatspreader is for the ETX-CD. It is the threaded version, which means it is designed for mounting to an ETX module with the M2.5 screws coming through the ETX baseboard and module to mate with the heatspreader.
Kontron ETX-CD 1.5GHz Intel® Core™ 2 Duo CPU (18030-0000-15-3)
£611.00 Exc VAT£717.93 Inc VAT
Kontron ETX-CD 1.66GHz Intel® Core™ Duo CPU (18030-0000-17-2)
£555.00 Exc VAT£652.13 Inc VAT