DICTIONARY

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- C -


Cadmium Plating -
A surface coating of elemental cadmium, applied on metals by electrodeposition. Provides sacrificial corrosion protection to the base metal.
Camout -
The disengagement of a driving tool from its mating recess upon the application of torque, usually the result of insufficient end load or worn/defective driver tool tip.
Carburize -
The introduction of carbon to the surface layer of ferrous alloys by heating the metal in contact with a suitablecarbonaceous material. Used to increase the surfacehardness of ferrous metals.
Case Hardening -
Cetyl Alcohol -
An organic, fatty alcohol applied to fasteners as a lubricant.
Chamfer -
A beveled surface on a component to eliminate a sharp corner.
Cherrylock® Rivet -
A locked-spindle blind rivet.
Chromium -
An elemental metal used as an alloying ingredient in alloy steels, stainless steels, or super alloys, to increase hardenability or corrosion resistance. Also used as an electroplate for corrosion protection.
Class -
Indicates the fit of mating male and female parts and the tolerance limits to be applied to the dimensional characteristics of each part.Thread (Specification) = MIL-S-8879, MIL-S-7742Hole (Specification) = NAS 618.
Coating -
A covering which adheres to a surface by chemical means.
Cold Work -
Permanent deformation produced in a metal at a temperature lower than the recrystallization temperature.
Collar -
A fastening component that is attached to a pin to clamp one or more pieces together and provide a permanent installation. Method of attachment may be by threading, swaging, forming or other means.
Comparator -
An inspection instrument which projects the magnified profile of a part onto a screen.
ComposiLok II® -
A high strength blind bolt for composite and metallic materials.  Designed and manufactured by Monogram Aerospace Fasteners.
ComposiLok®3 -
A high strength blind bolt for composite and metallic materials with a flush break-off.  Designed and manufactured by Monogram Aerospace Fasteners.
Composite Material Fasteners -
Fasteners designed for use in sandwich panel, honeycomb panel or other composite materials.
Conversion Coating -
A type of chemical treatment applied to a fastener to form a protective coating over the metal surface, such as chromate conversion coating.
Core Bolt -
The externally threaded, central part of a blind fastener.
Corrosion -
The deterioration of a metal by chemical or electrochemical reaction with its environment. Some specific types of corrosion are:
Counterbore -
A drilled or bored, flat bottom hole which is usually concentric with another hole.
Countersink -
A conical depression at the entrance of a hole, usually to receive the head of a flush head fastener.
Crack -
A clear break, either along grain boundaries or through grains or crystals (intra or intergranular).
Creep -
The slow but continuous deformation of a material under prolonged stress.
Crest (thread) -
Inthread form, the ridge which constitutes the outermost surface of an external thread or the innermost surface of an internal thread.
Crimp -
Controlled distortion of a part; usually applied to threads to create a lock through interference with the mating thread.
Cross Drill -
The process of drilling a hole, or holes, in a fastener normal to its major axis, such as cotter pin holes and lock wire holes.
Crown -
A spherical protrusion at the top of a fastener head.
Cryogenic -
Sub-normal temperature; generally considered to be below -259°F (-162°C), the liquefication temperature of methane.


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