Each 47mm Adams suction cup is rated to hold 3 pounds (1.36kgs) in weight.
Adams 47mm diameter suction cup with long neck and gripper nubs or barbs, can be pushed into a drilled hole board of a 3mm thickness and the protruding 4 x 1mm nubs around the long neck circumference will ease back out and grip from behind. (see technical drawing image for dimensions).
It is ideal for poster boards where a quick fixing is preferred to a clear screw or brass nut.
This suction cup can also be pushed into a drilled section of a material. The nubs will act as a tight fit against the hole edge.
Suction Cups: Adams worlds best Suction Cups work better for longer. Suction Cups Direct sells everyday suction cups from 22mm to 85mm in diameter. Our range includes suction hooks, suction cups with screw stud and nut, suction cups with mushroom head to suction cups with bulldog clips and suction cups for phone screens. Buy suction cups from www.suctioncupsdirect.co.uk