- Screw picket
A screw picket is a metal device used to secure something to the ground. Today, screw pickets are used widely to temporarily "picket" dogs and grazing animals such as sheep, goats, and horses. Screw pickets are also used to stabilize small trees, tent poles, and other objects that are intended to remain upright.
picketwas a stake hammered into the ground to secure a horse by tying it to the stake. This required a second tool (a hammer) or the availability of a rock to use instead of a tool. The screw picket is screwed (turned) into the ground; in hard ground it too requires a second tool (a leverage bar, or perhaps a spare screw picket) or the availability of a length of wood. Screw pickets are more easily bent or broken, but less easily pulled from the ground.
Military non-equestrian use
Screw pickets, used as supports for
barbed wiredefences, were introduced around 1915 as a replacement for timber posts. The French name for this type of steel stake was 'queue de cochon' or pigtail. The World War Isteel stake became known in the British Armyas a 'corkscrew picket'. The corkscrew picket was made from a steel bar which had its bottom end bent into a spiral coil. It also had three loops or 'eyes' (some even had four) formed, one at top, one at midway and one just above the corkscrew spiral. The final product was about five feet long.
Groups of soldiers, known in the British army as wiring parties went out at night into
no man's landto position these supports and then to string the barbed wire through the loops to form a defensive wire obstacleas a protection for their trench line. The British called this type of stake a 'corkscrew' picket because it was screwed into the ground rather than hammered in as the timber posts had been (the hammering made a lot of noise and this usually attracted enemy fire). Screw pickets, while less rigid than timber posts, replaced them because they could be installed rapidly and silently.
The corkscrew picket was screwed into the ground by turning it in a clockwise direction using an entrenching tool' handle or a stick inserted in the bottom eye of the picket for leverage. The bottom eye was used in order to avoid bending the vertical bar of the picket.
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