Cold heading process is one of the new processes for pressure machining of less or no cutting
metal. It is a processing method that utilizes the plastic deformation of metal under the action of
external forces, and with the aid of molds, redistributes and transfers the volume of metal to form
the required parts or blanks. The cold heading process is most suitable for producing standard
fasteners such as bolts, screws, nuts, rivets, and pins.etc
A Single Hole Safety Bolt is a specialized fastener designed to provide enhanced security by preventing unauthorized removal. Here’s a detailed description:
Key Features:
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Single Hole Design – The bolt has a unique head with a single small hole, requiring a specialized tool (such as a spanner, pin wrench, or custom key) for installation and removal.
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Tamper-Resistant – The design makes it difficult to remove with standard tools like screwdrivers, pliers, or wrenches, deterring tampering or theft.
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Material – Typically made from hardened steel, stainless steel, or other durable metals for corrosion resistance and strength.
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Thread Type – May feature fine or coarse threads depending on the application, ensuring a secure fit.
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Finish Options – Available in various finishes (e.g., zinc-plated, black oxide, or stainless) for corrosion protection and aesthetics.
Common Applications:
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Security Panels & Enclosures – Used in electrical boxes, machinery guards, or public infrastructure.
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Transportation – Securing components in vehicles, bicycles, or trailers.
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Public Fixtures – Preventing vandalism or theft in street furniture, signage, or restroom hardware.
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Industrial Equipment – Ensuring critical fasteners remain intact in high-risk environments.
Advantages:
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Enhanced Security – Deters casual tampering due to the need for specialized tools.
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Durability – Resists wear, corrosion, and forceful removal attempts.
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Low Profile – Often designed to sit flush or recessed, reducing exposure to prying tools.
- Single hole safety bolt
Disadvantages:
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Requires Special Tool – Can be inconvenient if the tool is lost or unavailable.
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Limited Reusability – Some designs may be damaged upon removal, making them single-use.
Similar Fasteners:
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Shear Bolts – Break off after installation, leaving a smooth surface.
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Torx/Tamper-Resistant Screws – Use star-shaped heads with a security pin.