$64.99 Screw - Self Tapping - 1/4 inch - No. 4 - AC604021 | Rimmer Bros
Torx Flat Head Self Tapping Floorboard Screws Type F 1/4-20 x 1 QTY 250 - Walmart.com 
No6 x 1/4 - Self Tapping Screw Pozidrive Flange Type B - BZP - Pack of 50 | Self Tapping Screws
