LOOSENING AND TIGHTENING BOLTS
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LOOSENING AND TIGHTENING BOLTS. Grade 7- Talisay.
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Wrenches. Are tools for loosening and tightening of bolts and nuts.
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[Audio] Ahahahhs. Allen wrench. Is used in a type of screw bolt with a hexagonal hole in head. They consist of a single piece of material, typically metal that’s formed into a right angle. Both ends of an Allen key are hexagonal..
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Box END wrench. [image]. Tool used for moderate application for loosening and tightening bolts and nuts. A box-ended wrench has two closed ends with slightly varying sizes so that each end can be used to loosen or tighten fasteners of different sizes. The user simply needs to slide the end of the wrench over the nut or the head of the bolts, then turn in the desired direction to apply force. Due to the closed-end design, box-ended wrenches are better able to grip fasteners than open-ended wrenches without slipping or stripping the fittings..
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