Now in stock! Our new Tamper Resistant Satin Aluminum Stand-offs will help you to secure mounted signs and plaques in public spaces. Perfect for high traffic areas, these tamper resistant stand-off barrels are quipped with a set-screw which, when tightened, will help to prevent the casual observer from removing the cap and gaining access to the mounted item. Typical use is one stand-off per corner for signs up to 4 sq. ft. or each corner and every 10" - 18" along the perimeter for larger signs.