3.5 x 45mm C2 Tounge-Fix Flooring Screws (Box of 350) are available for next day delivery from Brighton Tools.
C2 Tongue-Fix Flooring Screws have been specifically designed for attaching tongue and groove floorboards to flooring joists. The C2 Tongue-Fix gives a secure fixture through the tongue without causing damage, allowing a flush fit with the next board. The C2 Tongue-Fix Flooring screw is sold in branded tubs and comes in an attractive CDU.