add-circular-outlined-button add-cross-outlined-symbol add-square-outlined-interface-button airplane-rotated-diagonal-transport-outlined-symbol alarm-clock-symbol arrow-entering-into-square attach-interface-symbol-of-rotated-paperclip attachment audio-tool-in-silence back-left-arrow-circular-button-outline back-left-arrow-square-button-outline big-map-placeholder-outlined-symbol-of-interface book-outline bookmark-outlined-interface-symbol bottle-gross-outlined-symbol button-of-nine-outlined-circles buttons cellphone cellular-phone-outline center-text-interface-symbol-of-lines chat-comment-oval-speech-bubble-with-text-lines chat-oval-speech-bubbles-symbol checkmark-outline checkmark-square-button-outline checkmark-verify-interface-symbol-button circular-arrow-counterclockwise-rotating-symbol circular-graphic-outline circular-outlined-badge-with-ribbon-recognition-prize-symbol circular-target-shooting-interface-symbol clipboard-square-symbol close-circular-button-symbol cloud-outlined-shape cloud-with-hail-falling cocktail-glass-outline code-signs collapse-two-arrows-diagonal-symbol comment-oval-outlined-balloon compass-orientation-symbol contract-two-arrows-symbol-pointing-the-center-of-square-button copy-two-paper-sheets-interface-symbol crescent-moon-phase-outlined-shape cropping-interface-tool-symbol cross-rounded-outline cross-square-button cube-of-notes-stack double-arrow-horizontal-symbol double-arrow-vertical-symbol double-right-arrows-angles down-arrow-square-button down-arrow-square-outlined-button down-arrow-to-a-square down-arrow down-circular-button download-circular-button download-down-arrow-symbol download-from-internet-cloud download-square-button download-square-outlined-interface-button electrical-storm-weather-symbol electronic-game-machine-outline email-closed-outlined-back-envelope-interface-symbol email-square-outlined-interface-symbol-of-envelope-back equalization equalizer-interface-square-button-symbol event-weekly-calendar-symbol expand-square-interface-button-of-two-arrows expanding-two-opposite-arrows-diagonal-symbol-of-interface facebook fast-forward-double-arrow-outline favourites-star-outline-interface-symbol file-rounded-empty-sheet file-rounded-outlined-symbol film-strip-couple-of-photograms flag-outline fog-at-night-weather-symbol foggy-day-fog-at-sunset-or-sunrise folder-outline fork four-rounded-squares-button full-screen-interface-symbol-of-four-arrows-in-square-button games-machine-outline gear-outlined-symbol giftbox-outline graphical-business-presentation-on-a-screen headphones-audio-symbol hot-interface-symbol-of-fire-flames-outline ico-error images-square-outlined-interface-button-symbol ink-interface-symbol-of-drop-outline instagram label-outline left-alignment left-arrow-curve-outline left-arrow-in-circle-outline left-arrow-line-symbol left-arrow-rounded-outlined-button-interface-symbol left-arrow-signal-outline left-arrow-square-outlined-button left-arrow-with-a-cross like-heart-outline-symbol link-button linkedin list-interface-symbol list lock-circular-padlock-outline-tool-symbol login-arrow-symbol-entering-back-into-a-square login-square-arrow-button-outline map-folded-outlined-paper megaphone-outline-of-amplification-tool men menu-square-button menu-three-outlined-rounded-lines-symbol microphone-outlined-tool microphone minus-circular-button minus-in-zoom-symbol minus-outline minus-square-outlined-button monitor-outline music-note music-rectangular-interface-button-outline music-theme musical-note-outlined-symbol musical-note mute-voice new-email-envelope-frontal-view nine-oclock-on-circular-clock note-outlined-symbol notebook-rectangular-symbol-with-spring notification-bell-outline-interface-symbol-1 notification-bell-outline-interface-symbol opened-email-outlined-envelope-back-interface-symbol oval-empty-outlined-speech-bubble paintbrush-outline paper-airplane-outline pause-outlined-big-symbol pencil-big-outlined-vertical-tool-symbol phone-auricular-outline photo-camera-outline pin planetary-grid-symbol play-triangle-outline portfolio-outline print-interface-button-symbol-of-printer-outline radio rain-weather-cloud-outline-symbol-with-raindrops-lines rectangular-outlined-speech-bubble-symbol recycling-bin rewind-double-arrow-outline-multimedia-button-symbol right-arrow-angle right-arrow-circular-button-outline right-arrow-circular-outlined-button right-arrow-on-a-pole-outlined-orientation-signal-symbol right-arrow-outline right-arrow-square-button-symbol right-arrow-square-outlined-button right-arrow-symbol-in-a-square-outline rounded-rectangular-tool-shape sand-clock save-button-interface-symbol-of-outlined-diskette search-interface-symbol search-oval-magnification-tool-or-spoon-interface-symbol share-social-interface-button shopping-bag shopping-basket-e-commerce-symbol shopping-cart-outline-1 shopping-cart-outline shuffle sort-ascending sort-descending speaker-musical-amplification-outlined-frontal-tool speaker-outline-1 speaker-outline-audio-interface-symbol speaker-outline speaker-outlined-square-frontal-tool-audio-tool-symbol speech-bubble-oval-symbol-with-three-dots square-outline square-shape-design-interface-tool-symbol square-targeting-interface-symbol store-commercial-symbol-outline sun-day-weather-symbol sunrise-or-sunset switch-outlined-symbol switch-outlined-tool-symbol tag-outline television-outline text-alignment-option-button-interface-symbol text-paper-sheet-symbol three-vertical-outlined-bars-symbol timer-timing-tool tool-outline-of-hotel-reception-or-covered-food-tray triangle-equilateral-outline-shape-on-horizontal-line trophy-outline twitter two-arrows two-circular-arrows two-circular-counterclockwise-rotating-arrows-symbol two-drops-sizes-outlined-shapes two-rounded-equal-squares-outlines-symbol unlocked-circular-padlock-outline up-arrow-angle up-arrow-circular-button up-arrow-in-square-interface-button up-arrow-into-square up-arrow-or-flag-shape-big-gross-outlined-symbol up-arrow-square-button-outline up-arrow-square-button up-arrow-with-house-shape-outlined-symbol up-circular-interface-button up-square-button-outline upload-to-the-cloud upload upper-right-arrow-square-button-outlined-symbol user-info-interface-symbol-with-text-lines-at-right-side user-outline-male-symbol-of-interface video-camera-outline wallet-outline weather-interface-symbol-of-a-semicircle-on-three-lines-perspective weekly-calendar-outline-event-interface-symbol weekly-calendar wind-socket-outlined-symbol window-outline winds-lines-weather-symbol wrench-outline youtube zoom-increasing-symbol

Special frame screw for window and door installation

Features and benefits

  • Flat head for flush installation with the window and door frames.
  • Expansion-free fixing imposes less stress on substrate during installation
  • High load resistances from a relatively small hole diameter
  • Easily removed for temporary works

Product information

Size

Product Code

Screw

Fixture

Diameter

Length

Max. thickness

Hole diameter

d

L

tfix Concrete

tfix Other

df

[mm]

[mm]

[mm]

[mm]

[mm]

Ø7.5

R-WHO-75052

7.5

52

22

-

8

R-WHO-75072

7.5

72

42

12

8

R-WHO-75092

7.5

92

62

32

8

R-WHO-75112

7.5

112

82

52

8

R-WHO-75132

7.5

132

102

72

8

R-WHO-75152

7.5

152

122

92

8

R-WHO-75182

7.5

182

152

122

8

R-WHO-75202

7.5

202

172

142

8

R-WHO-75212

7.5

212

182

152

8

Base material

  • Concrete

    Concrete

  • Solid Brick

    Solid Brick

  • Hollow Brick

    Hollow Brick

  • Aerated Concrete Block

    Aerated Concrete Block

Applications

  • Door and window frames
  • Securing formwork
  • Suspended ceilings
  • Lightweight steel angles
  • Timber constructions

Installation guide

Installation guide
Installation guide
Installation guide
Installation guide
  1. Drill a hole of required diameter and depth
  2. Lightly screw into hole through the fixture, until fixing depth is reached and fixture is secure

Installation data

Substrate

Concrete

Aerated concrete

Other

Fixing diameter

d

[mm]

7.5

7.5

7.5

Hole diameter in substrate

d0

[mm]

6

6

6

Min. hole depth in substrate

h0

[mm]

40

-

70

Min. installation depth

hnom

[mm]

30

60

60

Min. substrate thickness

hmin

[mm]

60

90

90

Min. spacing

smin

[mm]

15

30

30

Min. edge distance

cmin

[mm]

15

50

50

Downloads

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