5/16-18 x 2 Flat Head Floorboard Thread Cutting Screws Type F Star - Six Lobe Drive Black Phosphate Finish Countersunk T-40 Drive Carton 100 pcs Alloy Steel
- Floor board screws are specially designed for installing wood floors into truck trailers.
- Self Tapping Thread Cutting Screws - Measure length from the top of the head to the tip.
- Black Phosphate and Oil Finish. The oil serves as a rust inhibitor and a lubricant. However, this does not sanction use in wet or exterior situations.
- The head design of Floorboard Screws provide a flush surface in countersunk holes. For this reason, they are perfect in floorboard fastening applications..