Please take down the fiber chuck holder from front panel of mount, then fiber across behand panel, front panel and screw; Fix fiber by fiber chuck and then put fiber chuck onto front panle of mount, then it is finished and you can adjust it according to your requirement;
Price(USD):
APFC-5T-FC
213
APFC-5T-SC
213
APFC-5T-ST
213
APFC-5T-SMA905
213
Attention: you must lock screw then finish fine adjustment;