2 screws included

Fits the following:

 AD-AS1
AD-TS1
YAS-01M
YAS-01MQ eastcoastinstruments
YAS-100
YAS-200AD
YAS-23
YAS-23S
YAS-23U
YAS-25
YAS-25L
YAS-275
YAS-275S
YTS-100
YTS-200AD
YTS-23                  eastcoastinstruments
YTS-25
YTS-275
YTS-275(S/N K30000-)
YTS-275S                                                     eastcoastinstruments