GOK75, GOK75-N + WBT Roofing fixing system

Pre-assembled, wide plate,  telescopic fastening system for concrete substrate.

Features and benefits

  • High-quality material used for the production of telescopic fasteners ensures constant mechanical properties for many years. Also, retains its properties over a wide temperature range.
  • The cone’s optimal shape facilitates speed and ease of installation through the thermal insulation.
  • Internal sleeve design allows pre-assembly with any Rawlplug roofing screw, shortening installation

  • Hardened screw's thread surface. High quality anti-corrosion coating guarantees resistance of 15 Kesternich cycles.
  • The shape and type of screw's thread is designed specifically for connecting to concrete and wood. The drill point is designed to provide a fast and hassle-free installation. Sharp point of the drill prevents movement of the surface of the fixture.

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    Product information

    Product Code

    Plastic sleeve

    Fixture

    Diameter

    Length

    Plate diameter

    Min. thickness

    Max. thickness

    d

    L

    D

    tfix

    [mm]

    GOK75-015

    GOK75-015-N

    15.5

    15

    75

    30

    270

    GOK75-035

    GOK75-035-N

    15.5

    35

    75

    50

    290

    GOK75-065

    GOK75-065-N

    15.5

    65

    75

    80

    320

    GOK75-075

    GOK75-075-N

    15.5

    75

    75

    90

    330

    GOK75-085

    GOK75-085-N

    15.5

    85

    75

    100

    340

    GOK75-095

    GOK75-095-N

    15.5

    95

    75

    110

    350

    GOK75-105

    GOK75-105-N

    15.5

    105

    75

    120

    360

    GOK75-125

    GOK75-125-N

    15.5

    125

    75

    140

    380

    GOK75-135

    GOK75-135-N

    15.5

    135

    75

    150

    390

    GOK75-165

    GOK75-165-N

    15.5

    165

    75

    180

    420

    GOK75-185

    GOK75-185-N

    15.5

    185

    75

    200

    440

    GOK75-225

    GOK75-225-N

    15.5

    225

    75

    240

    480

    GOK75-255

    GOK75-255-N

    15.5

    255

    75

    270

    510

    GOK75-285

    GOK75-285-N

    15.5

    285

    75

    300

    540

    GOK75-325

    GOK75-325-N

    15.5

    325

    75

    340

    580

    GOK75-385

    GOK75-385-N

    15.5

    385

    75

    400

    640

    GOK75-425

    GOK75-425-N

    15.5

    425

    75

    440

    680

    GOK75-525

    GOK75-525-N

    15.5

    525

    75

    540

    780

    GOK75-625

    GOK75-625-N

    15.5

    625

    75

    640

    880

    GOK75-725

    GOK75-725-N

    15.5

    725

    75

    740

    980

    Product Code

    Screw

    Diameter

    Length

    d

    L

    [mm]

    R-WBT-61050

    R-WBT-61050

    6.1

    50

    R-WBT-61075

    R-WBT-61075

    6.1

    75

    R-WBT-61090

    R-WBT-61090

    6.1

    90

    R-WBT-61100

    R-WBT-61100

    6.1

    100

    R-WBT-61120

    R-WBT-61120

    6.1

    120

    R-WBT-61140

    R-WBT-61140

    6.1

    140

    R-WBT-61160

    R-WBT-61160

    6.1

    160

    R-WBT-61180

    R-WBT-61180

    6.1

    180

    R-WBT-61200

    R-WBT-61200

    6.1

    200

    R-WBT-61220

    R-WBT-61220

    6.1

    220

    R-WBT-61240

    R-WBT-61240

    6.1

    240

    R-WBT-61260

    R-WBT-61260

    6.1

    260

    R-WBT-61300

    R-WBT-61300

    6.1

    300

    Base material

    • Concrete

      Concrete

    • Concrete Slab

      Concrete Slab

    • Timber

      Timber

    Applications

    • Insulation layers to flat roofs to substrate: concrete, timber

    Installation guide

    Installation guide
    Installation guide
    Installation guide
    Installation guide
    1. Drill the hole of required diameter and depth (where applicable)
    2. Lightly insert plastic sleeve into insulation material
    3. Using drilling machine, drive the WBT screw into substrate until fixing depth is reached

    Installation data

    Substrate

    Concrete C20/25

    Thin-walled slab C16/20

    Timber

    Screw diameter

    d

    [mm]

    4.8

    6.1

    6.1

    Hole diameter in substrate

    d0

    [mm]

    8

    5

    -

    Min. hole depth in substrate

    h0

    [mm]

    50

    25

    -

    Min. installation depth

    hnom

    [mm]

    40

    20

    30

    Min. substrate thickness

    hmin

    [mm]

    70

    20

    30

    Min. spacing

    smin

    [mm]

    120

    120

    120

    Min. edge distance

    cmin

    [mm]

    30

    30

    50

    Screw drive

    -

    [-]

    -

    TX25

    TX25

    Downloads

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    Associated products

    • RT-SDSA Drill bits Aggressor SDS plus

      RT-SDSA Drill bits Aggressor SDS plus

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