CONE-SHAPED CONCEALED HEAD SCREW

KKT A4 | AISI316 wood screws: the ideal fastening for terraces and façades.

The KKT A4 | AISI316 wood screw is ideal in very aggressive environments and for chemically treated woods.

The inverse (left-hand) under-head thread guarantees excellent grip. The small conical head ensures that it is well concealed in the wood.

The three-lobed thread makes it possible to cut the wood grain during screwing, guaranteeing an exceptional wood penetration.

In A4 | AISI316 austenitic stainless steel, it is also available in the KKT X version with reduced length, for fastening Rothoblaas TVM and TERRALOCK standard clips in outdoor environments.

The KKT A4 and KKT X wood screws are suitable for use without pre-drilling on timber boards with a density of less than 550 kg/m3 and with pre-drilling on boards with a density of less than 880 kg/m3. Service classes 1, 2 and 3.