FH52-16(8)SB-1SH FH52-16S-0.5SH FH52-18S-0.5SH FH52-18S-0.5SH(99) FH52-20(10)SB-1SH FH52-20-0.5SH FH52-20S FH52-20S-0.5SH FH52-20S-0.5SH(99) FH52-20S-0.5SH/HRS