http://www.fischer.de/en/ - 14/01/2014

Plasterboard fixing metal GKM

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The self-tapping metal fixing for gypsum plasterboard and

gypsum fibreboard

BUILDING MATERIALS

Gypsum fibreboard▪Gypsum plasterboard▪

ADVANTAGES

Due to its material properties, theGKM can be used in gypsumplasterboard and gypsum fibreboard,and can be used with the most wide-ranging screws, hooks and eyescrews. This allows for a broad rangeof applications.

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The sharp, self-tapping threadenables a secure, positive fit fixing.This achieves a high load-bearingcapacity.

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The cross-drive recess means that astandard screwdriver or bit can beused. No special setting tool isrequired.

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The short fixing length means thatonly a small amount of space isrequired behind the board. As aresult, the GKM can also be used inthe case of unknown boardthickness and cavity depth.

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APPLICATIONS

Pictures▪Lighting▪Electrical installations▪Fitting accessories▪

FUNCTIONING

The GKM is suitable for pre-positioned installation.

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The self-tapping metal fixing GKMtaps itself into the plasterboard witha positive fit.

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Flush installation in the boardbuilding material. Overtightening thefixing should be avoided. Therefore,the installation torque should belimited when using a batteryoperated screwdriver.

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Adapted for wood, self-tapping andchipboard screws of 4.0 to 5.0mmdiameter.

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Pre-drill with a Ø8mm drill bit whenusing gypsum fibreboard anddouble-planked gypsumplasterboard.

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Not suitable for tiled plasterboard.▪

http://www.fischer.de/en/ - 14/01/2014

Plasterboard fixing metal GKM

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TECHNICAL DATA

Plasterboard fixing metal GKM

Min. thickness to firstsupporting layer

Max. fixturethickness

Screw Fixture thickness

t t fix ds x ls t fixArticle name Art.-No. [mm] [mm] [mm] [mm]GKM 024556 35 4,0 - 5,0 x LsGKM 12 040432 35 12 4,5 x 35GKM 27 040434 35 27 4,5 x 50

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TECHNICAL DATA

Plasterboard▪fixing▪metal▪GKM

Anchor length Min. thickness to first supporting layer

Max. fixture thick-ness

Screw Actuation Sales unit

l t t fix ds x ls

Item Art.-No. [mm] [mm] [mm] [mm] [pcs]

GKM 024556 31 35 — 4,5 - 5,0 x LS — 100GKM 12 040432 1) 31 35 12 4,5 x 35 PZ2 100GKM 27 040434 2) 31 35 27 4,5 x 50 PZ2 1001) Supplied with plasterboard screws with pan head.

2) Supplied with plasterboard screws with countersunk head.

Type GKM

Chipboard screw Ø [mm] 4,0 - 5,0Recommended loads in the respective base material Frec

2)

Gypsum plasterboard 9,5 mm [kN] 0,07Gypsum plasterboard 12,5 mm [kN] 0,08Gypsum plasterboard 2 x 12,5 mm [kN] 0,11

Plasterboard fixing metal GKMHighest▪recommended▪loads1)▪for▪a▪single▪anchor.The▪given▪loads▪are▪valid▪for▪chipboard▪screws▪with▪the▪specified▪diameters.

1) Required safety factors are considered. 2) Valid for tensile load, shear load and oblique load under any angle.

LOADS

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Plasterboard fixing metal GKM

http://www.fischer.de/en/ - 14/01/2014

Plasterboard fixing metal GKM

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