5/16-18 x 2 1/2 Flat Head Floorboard Thread Cutting Screws, Type F, (Star – Six Lobe Drive), Black Phosphate Finish, Countersunk, T-40 Drive (Carton 100pcs) Alloy Steel-Fast Shipping

Description

Floor board screws are specially designed for installing wood floors into truck trailers

Six-Lobe Recess Flat Heads (Floorboard)

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

The head design of Floorboard Screws provide a flush surface in countersunk holes. For this reason, they are perfect in floorboard fastening applications.