Notes: Use all specified fasteners in schedule to achieve values indicated. Values are based on 1 1/2" header and joist thickness. This table is based on Miami Dade County NOA # 05-0701.04. See General Notes. NVBH 24 Butterfly Hanger Fasteners Schedule Allowable Loads (lbs) Size Product Code Gauge Header 8d Joist 8d Downward Gravity Loads Box Size Price ADD TO CART 2 x 4 NVBH 24 18 12 6 1113 100pcs $61.00