From Eurospec.
Aluminium Flush Bolts(Required) : FBT4006SAA, 152mm - £4.91 FBT4008SAA, 203mm - £5.40 FBT4010SAA, 254mm - £8.57 FBT4012SAA, 304mm - £9.19 (*) Mandatory Option
Aluminium Flush Bolts