3.5 x 49mm Stainless Steel Tongue-Tite Screws - Box 200

These Stainless Steel lost-head screws are similar in size to a lost-head nail. They are designed to be used as a hidden fixing for tongue & groove flooring and timber cladding but are perfect for many other projects. Tongue-Tite Plus is intended to be installed at a 30-45 degree angle through the tongue of the board, allowing the groove to fit over the head of the screw. This screw can also be used to face-fix boards, the small head is barely visible when when driven just below the timber surface.

Tongue-Tite Plus is a stainless steel screw which is suitable for internal & external use. These screws have a narrow countersunk head with TX10 drive.
Its' single course thread has been designed to eliminate the ream out of the timber, giving high pull out retention, which helps to prevent squeaky floor boards.
The torx drive provides grip and control when fitting, the narrow countersunk head gives a neat flush fix to allow the next board to sit in place.

TX10 screwdriver bit included in the box.
Screw Head Diameter = 4.5mm