Find cold headed parts including cold formed steel, cold forming, cold heading and more. From cold headed fasteners to impact extrusions, you will find the cold headed part you need. Use the time-saving Request for Quote tool to submit your inquiry to all the cold headed part manufacturers and suppliers you select.
Global manufacturer, specializing in ferrous and nonferrous custom-engineered Cold Formed Parts and RWMA welding electrodes. Always the lowest price, through effective process solutions, including secondary operations and CNC machining. Over 100 years of combined engineering experience.
As cold forming, threading and knurling specialists since 1970, we are highly skilled at manufacturing a wide selection of cold headed parts, including carriage, hex & wheel bolts, double end studs, high performance stud pins, rivets and specialty fasteners. Check out our size and style capabilities.
TCR Corporation was founded in 1953 as a manufacturer of cold headed parts, standard and special fasteners, special metal component parts and standard solid rivets. We also provide automatic screw machining, cold formed steel and secondary operations such as milling, grinding and more.
Our versatile cold heading process offers great advantages over screw machining. Acme cold headed parts lower costs. Instead of removing material, it is formed; the variety of possible upsets, even double upsets, increases; plus, welded or brazed assemblies are replaced with a single cold headed product.
CMW is a manufacturer of custom and standard cold headed parts such as rivet contacts or discs. We also provide made-to-order materials. Our products are applicable for EDM applications and resistance welding, as arc-tolerant electrical contacts, contact assemblies and thermal conductions.
Cold
heading, a procedure also known as upsetting,
is the process of forming a head on a fastener or
a bulge on a cylindrical part that is being headed. Upsetting is a cold
forming process, meaning that it is accomplished without the application
of heat. The procedure essentially involves applying force with a punch
to the end of a metal blank, such as metal
wire contained in a die, to create a part. Cold
forming is a popular
choice for creating different parts because it has many advantages, such
as minimal material waste, consistency, good output rates and little
need for further finishing operations. Cold headed part manufacturers
have great versatility with part designs.
The metals used by cold headed part manufacturers range from copper to
high grade titanium. Steel is the most widely used material because of
its strength and economic stability. The machine that performs this heading
is known, appropriately, as a header. Headers are often fully
automated CNC (computer numeric controlled) machines, which are able
to make the rapid and consistent production of cold headed parts a reality.
With cold forming and heading, there is no machining, no lathe work and
no automatic
screw machines.
Therefore, a minimum of material is wasted by the end of the procedure.
Fasteners represent the single largest category of parts produced by
cold headed part manufacturers. A fastener, such as a bolt, rivet or
screw, is used for securing two or more materials together. Other parts,
such as spark plugs and axles, can be created using this cold headed
process as well. Due to its popularity in making various types of fasteners,
the phrase “cold headed parts” has become virtually synonymous
with “metal fasteners.” Quite often, cold headed parts manufacturers
will also provide secondary operations after forming their products,
such as bending, knurling, drilling, swaging, patching, tapping, head
painting, heat treating, shaving and milling.
The cold headed parts process is capable of producing a wide range of
forms, but sometimes not larger and more complex parts because of economic
and detailing reasons. Cold heading remains the method of choice for
many smaller parts, however, as it is quite economical. Many of these
parts previously could only be made by machining or cutting away metal,
resulting in labor and material waste. Cold headed parts are used in
a variety of industries, from construction to lawn and garden, automotive
to toys and others: hardware, stamping,
injection
molding, appliance, furniture, aerospace, farming and recreation.
Cold Headed Parts and Cold
Headed Part Manufacturers Image Provided by Elgin
Fastener Group
Cold Headed Parts
and Cold Headed Part Manufacturers Images Provided by Stalcop
Types of Cold Headed Parts
Cold formed steel refers to any steel components fabricated by the cold forming process.
Cold forming is a process through which small, simple parts are produced by applying high pressure instead of heat.
Cold
headed bolts are some of the most common parts that are made using cold headed
metal forming processes. These, along with screws and pins, make up
the bulk of cold headed fasteners.
Cold headed fasteners are connective mechanisms, like screws, manufactured by the cold heading process.
Cold headed pins
are made by manufacturers of cold headed parts. These pins have a head
that is formed and shaped using the punch and die process.
Cold headed rivets
hold together materials by spreading the tip via hammering and protruding
through the material.
Cold headed screws
can be made using a wide range of metal alloys. The use of a screw driver
or allen wrench is necessary for securing this type of threaded fastener.
Cold heading is the process by which the heads of small, simple parts—like screws and bolts—are produced.
Impact extrusion is a cold forming process that produces collapsible tubes out of soft metals through impact with a punch, or ram.
Steel pins are fasteners made from steel wire that is sharpened at one end and headed at the other.
Cold Headed Parts Terms
Anti-Seize Compound
– A compound used on the thread of fasteners to prevent the galling
of mating surfaces and improve corrosion resistance so the parts can be
disassembled later.
Bearing Stress – The stress
that is applied by a fastener to a joint face.
Chatter – Surfaces that are
rough or otherwise unsatisfactory, caused by a slight jumping of the tool
away from the work or the other way around.
Clamping Force – The force that
is exerted on the joint by the fastener.
Clench – A fastener’s
ability to hold together previously separated materials.
Cold Work – The process of deforming
metal at room temperature by hammering, drawing or forming.
Concentricity – The condition
in which two fastener surfaces share the same center.
Creep – The permanent deformation
of a fastener resulting from the application of stress and heat.
Die Impression –
The portion of the die surface that shapes the forging.
Eccentricity –
The degree of difference between the centers of a fastener’s surface
at different points.
Extrusion –
The process of forcing metal to flow through a die orifice in the same
direction in which energy is being applied (forward extrusion) or in the
reverse direction (backward extrusion), in which case the metal usually
follows the contour of the punch or moving forming tool.
Fatigue Strength
– A fastener’s fracture resistance ability during subjection
to variations of stress.
Heading – The
manipulation of wire, rod or bar stock in dies to form parts that generally
contain portions that are greater in cross-sectional area than the original
wire, rod or bar. Basically, heading is the creation of a head on a
metal part via cold form molding.
Impression – A cavity, or series
of cavities (multiple), machined into a forging die to produce a desired
configuration in the workpiece during forging.
Insert – A piece of steel that
is tightly fixed in a die. The insert may be used to fill a cavity, to
replace a portion of the die with a grade of steel that is better suited
for service or to function as a small die with the impression fastened
to a master die.
Joint – The
material(s) that the fastener connects together.
Lead Thread – A measurement
indicating the length between the beginning of a thread and the point
at which the thread reaches its fullest size.
Overtapping – The process of
tapping a thread after plating so that its tolerances will comply within
specification and allow the internal and external threads to assemble.
Pitch – The distance between
two threads.
Preload – The immediate tension
of a fastener after tightening, which will reduce over time.
Ram – The
main reciprocating member of a press, guided in the press frame, to which
the punch or upper die is fastened.
Shank – The
part of the fastener body between the head and the threaded portion.
