O processo de encabeçamento a frio é um dos novos processos para a maquinagem sob pressão com menos ou nenhum corte
metal. É um método de processamento que utiliza a deformação plástica do metal sob a ação de
forças externas e, com a ajuda de moldes, redistribui e transfere o volume de metal para formar
as peças ou os espaços em branco necessários. O processo de encabeçamento a frio é o mais adequado para a produção de
elementos de fixação, tais como cavilhas, parafusos, porcas, rebites, cavilhas, etc.
Flat Head Parafuso de Chicago, also known as sex bolts, binding posts, or barrel nuts, are two-part fasteners consisting of a male screw e um female barrel. They are commonly used in leatherworking, bookbinding, and other applications where a flush, low-profile connection is needed.
Features of Flat Head Chicago Screw:
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Flat Head Design – The screw has a countersunk flat head that sits flush with the surface when installed.
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Threaded Barrel (Female Part) – The barrel nut has internal threads that accept the male screw.
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No External Threads Visible – Once assembled, the screw threads are hidden inside the barrel, providing a clean finish.
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Secure Fastening – They provide a strong, permanent or semi-permanent hold, often requiring a tool (like a screwdriver or spanner wrench) for disassembly.
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Variety of Materials – Available in aço inoxidável, brass, aluminum, and steel, with options for plating (nickel, black oxide, etc.).
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Multiple Sizes – Come in different lengths and diameters (e.g., #6-32, #8-32, #10-24, 1/4″-20, etc.).
Common Uses:
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Leathercraft (belts, holsters, straps)
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Bookbinding (removable covers, portfolios)
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Furniture assembly
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Signage & displays
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Military & tactical gear (where rivets aren’t suitable)
Vantagens:
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Reusable – Can be unscrewed and reassembled.
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Flush Finish – No protruding parts.
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Stronger than rivets – Allows for disassembly without damage.
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