&edsp;Sentinel Non Removable Woodscrews are a countersunk tamper resistant security screw which can only be turned in a clockwise motion. Due to the unique shape of the head, the screw cannot then be loosened as it simply will not turn in an anti-clockwise direction. They are easy to fit using standard pozi screwdrivers or bits. Available in sizes 6 x&edsp;&edsp;up to 12 x 2 with a Bright Zinc Plated finish.
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Sizes 6 x ¾" up to 12 x 2½"....
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