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Description
Dual-Thread Adjustable Frame / Window Distance Screw (Fischer Frame / Distance Screw)
A specialized steel timber-to-timber screw featuring dual-pitch threads and a small countersunk head, engineered for stand-off installation and precise alignment of wooden window frames, door frames, and battens.
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Dual-Thread Distance Adjustment: Features two distinct threaded sections separated by a smooth shank, allowing the frame element to be adjusted to a precise distance from the substrate without needing shims or wedges.
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Small Countersunk Head: Narrow head design sinks neatly into timber frame pre-drills for a clean, flush aesthetic that can easily be filled or capped.
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Coarse Anchoring Thread & Fine Retaining Thread: Lower coarse thread anchors firmly into the wooden wall or timber substructure, while the upper thread holds the frame securely in place.
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Self-Tapping Piercing Tip: Sharp point with active thread geometry ensures fast starting and clean penetration without splitting structural timber.