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.
Pan Head Oil Plug Screw – Overview
A pan head oil plug screw is a threaded fastener designed to seal oil ports, drain holes, or fluid reservoirs in mechanical systems. It features a domed (pan-shaped) head with an external drive (typically slotted, Phillips, or hex) and a threaded body for secure installation.
Key Features & Characteristics
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Head Design:
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Pan head (low-profile, rounded top with flat bearing surface).
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Provides a slight protrusion for easy tool access while maintaining a smooth contour.
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Drive Types:
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Slotted (flat-head screwdriver).
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Phillips (cross-head screwdriver).
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Hex socket (Allen) (less common but used for higher torque).
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Thread Type:
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Metric (M6, M8, etc.) ou imperial (UNC/UNF) threads.
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May include tapered threads (NPT) ou straight threads with sealing features.
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Sealing Mechanism:
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Often paired with an integrated washer, O-ring, or copper gasket to prevent oil leaks.
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Some designs rely on thread sealant (e.g., Teflon tape).
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Materials & Coatings:
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Aço (carbon or alloy), aço inoxidável (corrosion-resistant), or brass (for non-sparking applications).
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Coatings: Zinc-plated, black oxide, or PTFE-coated for durability.
- Pan head oil plug screw.
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Common Applications
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Sealing engine oil pans, gearboxes, hydraulic systems, and differential housings.
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Acting as drain/fill plugs in automotive and industrial equipment.
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Used where a low-profile head is preferred over hex bolts or flanged plugs.
Variants
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Slotted pan head plug (basic, tool-simple).
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Phillips pan head oil plug (common in consumer machinery).
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O-ring pan head screw plug (integrated seal for better leak prevention).
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