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The first outer leg is inserted into the lewis hole, followed by the second outer leg. The inner (parallel) leg is inserted last, pushing the outer legs into contact with the inside of the lewis hole. The shackle is unbolted, placed over the legs, and the bolt fastened through both the shackle eyes and the eye in the top of each leg.
Eye bolts without a shoulder should not be used for angular loads. Heavy forged eye bolts with a continuous eye may be forged with an integral shoulder, allowing their use for heavy off-axis loads. Eye bolt with expansion anchor. Eye bolts are often installed into masonry and so versions that form their own anchor bolt are commonly available.
A safe working load (SWL) should, according to the regulations be marked onto lifting equipment with the relevant SWL being dependent on the configuration of the equipment, accessories for lifting such as eye bolts, lifting magnets and lifting beams should also be marked. [5]
Welded eye shallow cranked eye bolt in profile. The requirement for an offset tie down will occur when vermin proofing must be placed between the column or post, and a wooden bearer, for example to stop termites travelling up through a concrete or wooden post or column directly into the bearer and the rest of the building.
An elevator bolt is a similar to a carriage bolt, except the head (or foot, depending on the application) is thin and flat. There are many variations. [11] Elevator bolts are designed to be used for leveling appliances or furniture. eye bolt: An eye bolt is a bolt with a looped head.
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Establishing the lifting anchor positions will influence the rigging arrangements used and therefore the static analysis of the rigging should be determined. Particular rigging configurations may be more suitable for particular job sites or lifting in place considerations, and the lifting design should denote the assumptions accordingly.