Made in Germany - high strength - Attention: this shackle is only suitable for under-head mounting. - Made in Saxony, Superworm aluminium with shackle. Please note: this shackle is only suitable for underhead mounting. The aluminium superworm can be screwed into almost any ground with its full length. Thanks to the sophisticated thread geometry with 8 flanks and increasing diameter up to 27 mm and the large 24 mm screw head, it is possible to use strong screw-in tool with the necessary power transmission to screw in the 30 cm long aluminium super worm with its entire length. A pass-through hole (8 mm diameter) in the screw head provides an additional screw-in alternative, because the super worm can also be screwed into with a screwdriver or a strong pin. Once screwed using this through hole, objects can also be anchored and secured. So that you do whatever you want to attach. Following the high strength requirements, the aluminium superworm is complemented by a versatile metal shackle. The shackle can be installed before and after screwing in. This allows you to attach carabiner hooks to the superworm. The shackle is also available in stainless steel. !!! Please note: With stainless steel shackle 24 mm diameter for a over the head - centre hole attachment, see ASIN: B09GK1ZYG1