Product Details
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Contract Door Security Bolt, sometimes called a Rack Bolt. The bolt is morticed inside the door edge and can be locked or unlocked via a separate splined key or with a fixed splined turn
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The bolt has an internal sawtooth rack mechanism into which the splined key is inserted. The spline engages with the rack teeth and forms a gearing action which smoothly operates the bolt
(KEYS SOLD SEPARATELY)
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Available Finishes: Polished Chrome, Satin Chrome Or Electro Brass
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Dimensions: 85mm, 57mm Centres, Supplied Complete With Both Radius & Square Keep PlatesÂ
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The Hex/Rack Style Keys Required To Operate These Door Bolts Are Sold Separately, Please See Related Products Below

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Oval Thumbturn & Release (4.5Mm Spline Spindle), Polished Brass 
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