- Apex Tool Group
- Apex® Fastener Tools
- Utica® Torque Products
- Apex® Universal Joints
- Sturtevant Richmont Torque Tools
- Ball Studs
- Captive Fasteners®
- Construction Fasteners
- COVID-19 Fasteners
- Delta PT® Screws
- Nut Retainers
- Palnut® Fasteners
- Plastic Molded Products
- Precision Shoulder Screws
- REMFORM® Screws
- Screw Machine Products
- Sex Bolt
- Spring Steel Fasteners
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- Thread Forming Screws
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- Tube Connectors
- Xmas Tree Clips
- Other Fasteners
Authorized Distributor for:
Cold Heading Design Guidelines
Candidates for Cold Forming
Any one of the following
criteria make a part a strong candidate for cold forming:
Diameters: 1.27 mm to 40 mm (.050" to 1")
Lengths: (14") under the head with
diameters to (1")
While part geometry affects tolerances, cold forming generally allows your tight tolerance requirements to be met. When combined with secondary grinding operations, tolerances as tight as .0127mm (.0005") can be achieved.
The diameter (top) and length (bottom) tolerances shown here can be achieved without secondary machining.
If the application requires a sharp fillet radii, corner or flush surface, an undercut can be achieved in the cold forming process, possibly eliminating a secondary operation.
Generous radii at the corners allow the natural flow of material to strengthen the part and reduce the need for secondary machining. If necessary, tight or zero radius corners are possible through secondary machining.
Points can be achieved by heading
or secondary operations. The reference dimension for a header die point
is 45º after threading. Other point designs can be formed with
Points can be achieved by heading or secondary operations. The reference dimension for a header die point is 45º after threading. Other point designs can be formed with secondary machining.
The wide variety of shapes that
can be formed through cold heading or roll forming, greatly reducing
manufacturing scrap and costs, include:
The wide variety of shapes that can be formed through cold heading or roll forming, greatly reducing manufacturing scrap and costs, include:
A variety of shapes can
be extruded through cold forming, allowing area reductions of 90% in
aluminum, 75% in medium carbon steels, and 50% in stainless steels and
high tech alloys.
Apex Fasteners can cold form many unusual alloy, stainless steel and machining-grade materials, to allow easy conversion from screw machining and other manufacturing methods. Materials include:
Cold forming produces a surface finish of 63 micro inches, which is superior to the 125 micro inch finish typically produced on machined surfaces. If a smoother surface is required, Apex Fasteners can utilize grinding, burnishing, or other secondary operations to achieve a finish as low as 6 micro inches.
Head and Drive Styles
Cold forming can produce many unique head styles, including large, offset, functional and decorative head designs, without secondary operations. Also, cold forming can efficiently manufacture a variety of internal and external drive systems, including slotted, phillips, torx, slot.torx, slot.phillips, one way, tamper resistant, phillips posidrive, square drive and others.
Cold forming allows the
cost-effective manufacturing of shoulders in shapes such as round,
triangular, hex and more.
In selecting plating, several aspects must be considered,
including desired corrosion resistance, lubricity and appearance, as
well as concerns over cost and toxicity. While typical plating
offerings include zinc, organics, and phosphate and oil, Apex Fasteners
has a wide array of plating types available to meet the specific needs
of your application.
Several types of heat treatment are available to meet desired hardness, strength, and ductility characteristics, including:
Please contact a Apex Fasteners for more information on what type of heat treatment is appropriate for your application.
Apex Fasteners offers a full line of precision secondary operations, including:
APEX Fasteners supplies standard and custom screws, nut retainers, shoulder screws, plastites and taptites, all types of rivets, spring steel fasteners and special stampings, sems screws in standard, fractional or metric to electronics, aviation and other OEM industries worldwide. ApexFasteners.com custom manufactures screw machine components for electronic enclosure hardware as well as cold forming and cold headed specials for assembly and production requirements.
Tel: (626) 962-2219 - firstname.lastname@example.org