4-Pack) 3/16” x 5” Length Spring Wing Toggle Anchor Bolts | eBay
10-Pack) Barrett Fasteners Spring Wing Anchor Toggle Bolt 3/16" x 6" Long | eBay
25R300ATR,toggle spring wing, toggle spring wing anchor;toggle spring wing, toggle spring wing anchor,1/4 X 3 ROUND HD TOGGLE BOLT,Jugenheimer Industrial Supplies, Inc.