FMTH Kit

Any OVP device can be mounted to the edge of the flange using tapped holes. Users need to confirm that field drilling and tapping the flange is acceptable.

For English threads, a 3/8×16 and a 5/16×18 tapped hole is required, each with full threads to a 5/8” depth. For metric threads, a M10x1.5 and a M8x1.25 tapped hole is required, each with full threads to a 16mm depth.