Screw Anchor 15,000 Ft-lb Rating, 2.5in Hub,1in Threads
Full set of screw Anchor consists of a helix-hub assembly, anchor rod, and eye nut. Installation is performed using a drive wrench which fits into the anchor hub.
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- Product Introduction
The earliest helical anchor created by a blind English brick maker names Alexander Mitchell for designing a foundation support of a lighthouse in 1833. The concept of “screw pile” was very successful in the designing but the development of helical plate foundation was not progress (Chance, 2004). Until 1950’s, a power-installed screw anchor for resisting tension load was found in US and this type of anchor was starting popular and widely used in the construction site. The helical anchor formed by a steel shaft which one or more helical plates welded to the shaft to create a “screw anchor”. Helical anchors are primary designed and constructed to provide the uplift resistance to the foundation of a structure. However, helical anchor system also can provide the compression support to the structure. Generally, helical anchor can be dividing to two types that are single helix anchor and multi helix anchor. Both of types of helical anchor have shown in Figure 1.
Material | Steel |
Surface treatment | Paint |
Size | 175mm, 250mm, 350mm, 450mm, |
Process | Investment and Welded |
Type | Socket internal drive, power installed anchor |
Supply with | Single or Double thimble eye nut and anchor rod |
Application
The socket type screw anchor can be used in agriculture field, for assemble anti-hail netting system, vineyard, Cherry garden, crop protective canopy or netting construction.
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