A knurled nut is a nut with a knurled outside surface. This facilitates tightening by hand (thumb nut) or secures the nut into a handle or cover (insertion nut).
Uses
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Knurled nuts are commonly used in any application where the fasteners will be removed regularly but not needed for structural support. They can commonly be found on electrical panel covers, precision measuring tools, squares, and service covers. The advantages of using a knurled fastener in this situation are: it improves the ease of removal, deters the possibly over-tightening/stripping, and does not require any tools to manipulate the fastener.
However, there are knurled nuts available that have a slot cut into them for the use of a Phillips head screwdriver. This expands the versatility of the nut and provides the option to use tools. Nuts with the Phillips slot are common in applications where vibration is a concern.
References
[edit]- What Are Thumb Screws and Where Are They Used, www.rabcomponents.com/blog/what-are-thumb-screws-and-where-are-they-used.html.
- “Understanding Benefits and Applications of Knurled Thumb Screws.” Norwood, norwoodscrewmachine.com/blog/understanding-benefits-applications-knurled-thumb-screws/.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction