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An acorn nut. An acorn nut, also referred to as crown hex nut, blind nut, cap nut, domed cap nut, or dome nut (UK), is a nut that has a domed end on one side. When used together with a threaded fastener with an external male thread, the domed end encloses the external thread, either to protect the thread or to protect nearby objects from contact with the thread.
Acorn nut (cap nut) Crown hex nut, blind nut, cap nut, domed cap nut, or dome nut A nut that has a domed end on one side Barrel nut: Steel cross dowel or dowel nut, cross dowel (woodworking) A round slug or formed sheet metal part with threads perpendicular to the length of the nut Cage nut: Caged nut, captive nut, clip nut
Twist-on connectors are also known as wire nuts, wire connectors, cone connectors, or thimble connectors. In Canada, the trade name Marrette (see § History ) is commonly used generically for connectors of any brand.
An ASME B18.2.1 compliant cap screw has somewhat tighter tolerances than a hex bolt for the head height and the shank length. The nature of the tolerance difference allows an ASME B18.2.1 hex cap screw to always fit where a hex bolt is installed but a hex bolt could be slightly too large to be used where a hex cap screw is designed in.
In British terminology, a cap screw is a bolt that has threads all the way to the head. Bolts are often used to make a bolted joint. This is a combination of the nut applying an axial clamping force and also the shank of the bolt acting as a dowel, pinning the joint against sideways shear forces.
The acorn is the nut of the oaks and their close relatives (genera Quercus, Notholithocarpus and Lithocarpus, in the family Fagaceae). It usually contains a seedling surrounded by two cotyledons (seedling leaves), enclosed in a tough shell known as the pericarp, and borne in a cup-shaped cupule .
A center cap, or centercap is a decorative disk on an automobile wheel that covers a central portion of the wheel. Early center caps for automobiles were small and primarily served the purpose of keeping dirt away from the spindle nut and wheel bearings of vehicles. [1] Center caps are often found on new cars to hide the lug nuts, and/or the ...
Hexagon nuts with metric coarse and fine pitch thread – Product classes A and B: Withdrawn: DIN EN ISO 4032, DIN EN ISO 8673: ISO 4032, ISO 8673: DIN 935-1: Hexagon slotted nuts and castle nuts with metric coarse and fine pitch thread – Product grades A and B: Active: DIN 935-2: M42 to M160x6 hexagon head nuts; product grade B: Active: DIN ...