Product Overview
The ZELCAN 230-piece SAE & Metric Grease Fittings Kit is a comprehensive assortment designed for hydraulic lubrication applications. This kit provides a wide range of commonly used grease zerks, including straight, 45-degree, and 90-degree angled fittings in both SAE (1/4", 1/8") and Metric (M6, M10) sizes. These fittings are essential for feeding lubricant to bearings and other mechanical devices without requiring disassembly, making them suitable for automotive, industrial, and general maintenance tasks.

Image: The complete ZELCAN 230-piece SAE & Metric Grease Fittings Kit, neatly organized in two transparent storage cases, showcasing the variety of straight and angled fittings.

Image: A visual representation of the grease fitting set, highlighting its utility in lubricating heavy machinery and industrial equipment.
Kit Contents and Specifications
This 230-piece kit includes a variety of grease fittings to suit diverse needs. The fittings are constructed from durable 45# structural steel and are galvanized for enhanced corrosion resistance and longevity.

Image: A detailed diagram illustrating the breakdown of the 230-piece kit, showing quantities for each SAE (1/4"-28, 1/8"-27) and Metric (M6x1, M10x1.5) size, across straight, 45-degree, and 90-degree configurations.
Detailed Specifications:
| Specification | Detail |
|---|---|
| Size | SAE & METRIC (1/4", 1/8", M6, M10) |
| Material | Alloy Steel (45# structural steel) |
| Exterior Finish | Galvanized (Zinc) |
| Connector Type | Nipple (Grease Zerk) |
| Thread Sizes Included | 1/4"-28, 1/8"-27, M6x1, M10x1.5 |
| Angles Included | Straight, 45°, 90° |
| Number of Pieces | 230 |
| Item Weight | 3.19 pounds (1.45 Kilograms) |
| Package Dimensions | 8.5 x 4.49 x 2.44 inches |

Image: A comprehensive table providing dimensional specifications (thread height, head width, overall height) for each type of SAE and Metric grease fitting, including straight, 45-degree, and 90-degree variants.
Installation and Usage
The ZELCAN grease fittings are designed for straightforward installation and use, allowing for efficient lubrication of mechanical components.
Installation Steps:
- Prepare the Area: Ensure the area around the existing or intended grease fitting location is clean and free of debris.
- Select the Correct Fitting: Identify the appropriate SAE or Metric size and angle (straight, 45°, or 90°) that matches the application's requirements. Refer to the kit's identification charts for quick selection.
- Remove Old Fitting (if applicable): If replacing an old fitting, use a suitable wrench to carefully remove it.
- Install New Fitting: Insert the new ZELCAN grease fitting into the threaded hole. Use a wrench to tighten it securely. Ensure it is snug but do not overtighten, as this can damage the threads.
- Verify Fit: Confirm the fitting is seated properly and provides a tight seal.

Image: A visual guide demonstrating the four simple steps for installing a grease fitting and preparing it for lubrication: selecting a wrench, choosing the zerk, tightening it into place, and connecting a grease gun.
Operating (Lubrication Process):
- Attach Grease Gun: Connect the nozzle of a standard grease gun to the head of the installed grease fitting. Ensure a firm connection to prevent leakage.
- Inject Lubricant: Operate the grease gun to inject the appropriate lubricant into the component. Continue until resistance is felt or the component is adequately lubricated according to its maintenance schedule.
- Remove Grease Gun: Disconnect the grease gun from the fitting. The spring-loaded ball check mechanism will prevent contamination and retain the grease.
Maintenance and Features
The ZELCAN grease fittings are designed for durability and minimal maintenance, thanks to their robust construction and intelligent design features.
Material and Durability:
All fittings are constructed from 45# structural steel, known for its strength. The galvanized finish provides excellent resistance to wear, rust, and corrosion, ensuring a long service life even in demanding environments.

Image: A close-up display of several ZELCAN grease fittings, showcasing their high-strength galvanized steel construction, designed for durability and resistance to wear and corrosion.
Key Design Features:
- Precision-Engineered Threads: The threads are precisely cut to ensure a tight, secure fit, which contributes to a longer service life and prevents leakage.
- Superior Locking Mechanism: A premium locking design helps prevent slippage or disconnections during the grease injection process, ensuring efficient and mess-free lubrication.
- Premium Ball Check: Each fitting incorporates a spring-loaded ball check at the head. This mechanism prevents contaminants from entering the system and keeps the grease securely inside.
- Reinforced Spring: The resilient spring within the fitting compresses to allow grease flow and then returns to hold the ball check firmly in place, sealing out dirt and debris.

Image: Close-up illustrations detailing the precision-engineered threads for a tight fit, the superior locking mechanism to prevent slippage, and the premium spring-loaded ball check that prevents contamination.

Image: A collection of various ZELCAN grease fittings, accompanied by an inset diagram illustrating the reinforced spring mechanism that allows grease flow and then seals the fitting.
Troubleshooting
While ZELCAN grease fittings are designed for reliability, here are some common issues and their potential solutions:
- Grease Leakage During Injection:
- Ensure the grease gun nozzle is firmly seated on the fitting.
- Check if the fitting is tightened securely into the component.
- Inspect the fitting for damage or wear; replace if necessary.
- Difficulty Injecting Grease:
- Verify that the grease gun is functioning correctly and is not clogged.
- Check if the fitting's ball check is stuck due to old, hardened grease or debris. A gentle tap or a small amount of penetrating oil might free it, but replacement is often the best solution for a stubborn fitting.
- Ensure the correct type of grease is being used for the application.
- Fitting Does Not Thread Properly:
- Confirm you are using the correct SAE or Metric thread size for the application.
- Inspect the threads on both the fitting and the component for damage. Do not force a fitting if it resists threading.
Warranty and Support
The ZELCAN 230pc SAE & Metric Grease Fittings Kit comes with a 1-year warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
For warranty claims, technical support, or any inquiries regarding your ZELCAN product, please contact ZELCAN customer service. Refer to the contact information provided with your purchase or visit the official ZELCAN website for assistance.
For more information about ZELCAN products, you can visit the ZELCAN Store on Amazon.
Storage and Organization
The kit includes two durable storage cases designed to keep your grease fittings organized and easily accessible. Each case features an identification chart to help you quickly locate the specific fitting you need, minimizing search time and preventing loss of components.
Store the cases in a dry environment to further protect the galvanized steel fittings from potential moisture exposure, although they are designed for corrosion resistance.
Additional Information
This kit is ideal for both professional mechanics and DIY enthusiasts due to its comprehensive selection and robust construction. The varying sizes and head angles ensure compatibility with a wide range of machinery and vehicles, making it a versatile addition to any toolkit.