Fixing screws tight, but furniture loose on door Furniture screws too long Furniture screws difficult to tightenBurrs on screws – Must de-burr screws when cutting to length. Turn snib difficult to operateTail bar not cut to correct length or turn snib misaligned on door. Can I change the door furniture handing on the Securafix products?Changing the handing on the plate moves the hex nuts to the wrong side of the door. The furniture fixing will not clutch when fitting and will clutch when loosening. Why can I not use the entire selection of lever handles on the narrow stile furniture?The clearance on the narrow stile will not allow some levers to function.