Use outside holes for 3-1/2" to 4" flanges; use inside holes for 2" to 3" flanges. For wind zone 1.4 1/2" x
1- 1/2" Grade 5 machine bolts and 8-1/2" high strength washers included.
Return
Items must be returned within 3 days . Refund will be given as Money back. Refund policy details:
