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  • C76 Overhead Crank

  • Part No C76
  • The YewdaleDefiant® C76 crank operation overhead blackout unit's hardware is black powder-coated aluminium for face or recess fixing. Enclosed is a 53mm and 57mm grooved aluminium barrels. Blackout fabric is locked into a groove in the barrel and runs in 75mm side channels. Light-transfer baffles are located within the side and bottom channels, and the side channels and head-box is fitted with pile-seal light sealing. Fabric is mounted onto a sprung 57mm aluminium barrel whilst at the other end is fitted to an aluminium bottom rail, attached to two draw tapes. These tapes are attached, between flanged guides, to the 53mm drive barrel, operated by heavy duty 1:5 gear control mechanism and magnetic detachable crank handle.

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Fabric Selectors

Select and download from the fabric selectors below.

AmazonDartEden DaylightEden BlackoutEden Blackout White BackRoachRoeThamesHarrier
Dim OutYesYesYes
Black OutYesYesYesYes
Fire RetardancyYesYesYesYesYesYesYesYesYes
Suitable for roller blindsYesYesYesYesYesYesYesYes
Suitable for vertical blindsYesYesYesYesYesYes
Anti BacterialYesYesYesYes
Wipe CleanYesYesYes
Wipe with damp spongeYesYesYesYesYes
Suitable for moist conditionsYesYesYesYesYesYesYesYes
100% PolyesterYesYesYesYes


The C76 blackout unit is the ultimate in choice for 100% light exclusion requirements for sloping or horizontal roof windows. With heavy duty componentry and tensioning action by powerful spring to the fabric roller, these blinds may be confidently specified for awkward or inaccessible locations. The magnetic detachable crank handle removes the common issues associated with locating the drive at height and solves the problem of unauthorised use.


White hardware; Fixed crank handle; Available in any RAL colour.


The YewdaleDefiant® C76 crank overhead blackout unit with 1:5 geared crank as manufactured by Yewdale, +44 (0)1268 570900. Flame retardant blackout fabric from the YewdaleDefiant® range, on 57mm aluminium barrel with enclosed spring attached to aluminium bottom rail as standard. 53mm drive barrel connected to gear control crank mechanism operates blind by means of draw-tapes to the bottom bar. Black/white powder-coated aluminium headbox cassettes, side and bottom channels and bottom bar. Incorporating detachable crank handle.

CodeDescriptionMin WidthMax WidthMax DropMax m2
C76Overhead Crank720200026004.2

Based on fabric weight of 400g/m², e.g. Dart. Larger sizes may be possible with lighter/thinner fabrics. Sizes shown in millimetres unless otherwise specified.