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Ground Anchor Security Bolts 4 x M10 BUTTON HEAD with security ball inserts plus Allen key. : Amazon.co.uk: Automotive
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Triangle Head M6 M8 M10 Security Screw Anti-theft Safe Male Bolt Outer Triangle Drive Flange Gasket Street Light Anti-dismantle Pole Fasteners (10, M6 x 16mm) : Amazon.co.uk: DIY & Tools
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