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Grease Nipple (Zerk Fitting)

A grease nipple is a lubrication fitting used for injecting grease into mechanical components via a grease gun. It features an internal check valve that prevents backflow of lubricant. Available in straight, angled, and 90-degree types to accommodate maintenance in confined or hard-to-reach areas.

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Product Features

  • One-piece construction with built-in check valve to prevent grease backflow

  • Available in multiple angles (Straight / 45° / 90°) to suit various equipment configurations

  • Compatible with a wide range of thread types for medium to large industrial machinery

  • Works with all standard grease guns for efficient lubrication

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Material & Surface Treatment

  • Carbon Steel (Nickel-Plated): Rust-resistant, suitable for general machinery

  • Stainless Steel SUS304: Excellent corrosion resistance, suitable for outdoor, humid, or cleanroom environments

  • Brass: Great thermal conductivity, ideal for precision lubrication and specialty applications

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Types & Thread Options

  • Straight Type

  • 45° Angled Type

  • 90° Angled Type

  • Thread Sizes: M6 / M8 / M10 / 1/4” PT / 1/8” PT and more

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Applications

  • Lubrication points in industrial machinery

  • Grease injection ports for construction vehicles and equipment

  • Maintenance access for bearings, linkages, and rotating systems

  • Automation systems with scheduled lubrication intervals

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Customization & Notes

  • Available with metric or imperial thread options

  • Small quantities in stock for fast delivery

  • Bulk orders available with project pricing and stable long-term supply

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