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application-cone-shaped-concealed-head-screw-kkt-a4-aisi316
application-cone-shaped-concealed-head-screw-kkt-a4-aisi316

KKT A4 | AISI316

CONE-SHAPED CONCEALED HEAD SCREW

KKT A4 | AISI316 is the wood screwdesigned for outdoor use in very aggressive environments.

Ideal for fastening claddings for terraces and façades, it is also available in the KKT X version for fastening standard clips for wooden boards.

EN 14592
Missing Title
CRC III

Description

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.

Features

  • FOCUS
    excellent grip
  • HEAD
    conical, countersunk
  • DIAMETER
    5.0 mm
  • LENGTH
    from 20 mm to 80 mm

Documents

  • Technical data sheets
  • Declaration of performance (DOP)
  • File CAD
  • Calculator Spreadsheet_DeckDesigner

KKT A4 | AISI316

CODE info d₁
[mm]
L
[mm]
b
[mm]
d₁
[in]
L
[in]
b
[in]
TX pcs.
KKT540A4 - 5 43 25 0.2 1 11/16'' 1'' TX20 200
KKT550A4 - 5 53 35 0.2 2 1/16'' 1 3/8'' TX20 200
KKT560A4 - 5 60 40 0.2 2 3/8'' 1 9/16'' TX20 200
KKT570A4 - 5 70 50 0.2 2 3/4'' 1 15/16'' TX20 100
KKT580A4 - 5 80 53 0.2 3 1/8'' 2 1/16'' TX20 100

KKT X A4 | AISI316

CODE info d₁
[mm]
L
[mm]
b
[mm]
d₁
[in]
L
[in]
b
[in]
TX pcs.
KKTX520A4 - 5 20 16 0.2 13/16'' 5/8'' TX20 200
KKTX525A4 - 5 25 21 0.2 1'' 13/16'' TX20 200
KKTX530A4 - 5 30 26 0.2 1 3/16'' 1 1/32'' TX20 200
KKTX540A4 - 5 40 36 0.2 1 9/16'' 1 7/16'' TX20 200