The Maco MK1 shootbolt espagnolette gearbox 20mm is designed for side or top hung UPVC window applications. These centre gearboxes are designed to work in conjunction with adjustable extension bars which are not included with this product. The Maco MK1 shootbolt espagnolette is compatible with all standard espagnolette handles with 43mm fixing centres and a 7mm square spindle.
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