STANLEY ZSTA-0-33-504
Stanley FatMax Autolock Pocket Tape Measure
Model: ZSTA-0-33-504
Brand: STANLEY
Product Overview
The Stanley FatMax Autolock Pocket Tape is engineered for precision and durability. Its compact design and ergonomic bi-material case provide enhanced grip and comfort during use. Featuring advanced auto-lock technology, the blade extends and holds securely in place without manual locking, retracting smoothly with a simple press of a button. The Mylar-coated blade offers superior resistance to abrasion and wear, ensuring longevity. With Class II accuracy and a Tru-zero end hook, this tape measure delivers reliable and precise measurements for both internal and external applications. It also boasts a significant blade stand-out for extended reach and includes versatile detachable hooks for various measuring scenarios.

Figure 1: The Stanley FatMax Autolock Pocket Tape Measure, highlighting its ergonomic design and auto-lock feature.
Key Features
- Auto-Lock Technology: The blade automatically locks upon extension, providing hands-free measurement. Retraction is controlled by a simple button press.
- Mylar Coated Blade: Offers up to 10 times more resistance to abrasion and wear compared to standard lacquered blades, enhancing durability.
- Ergonomic Bi-Material Case: Designed for increased grip and user comfort during prolonged use.
- Tru-Zero End Hook: Compensates for both inside and outside measurements, ensuring accurate readings.
- 3M Blade Stand-Out: Provides extended reach for easier single-person measurements.
- Detachable Hooks: Includes both standard and XL magnetic hooks for versatile attachment to various surfaces, improving efficiency in different working conditions.
- Belt Clip: For convenient and accessible storage when not in use.
- Dual Measurement System: Features both Metric (8m) and Imperial (26ft) graduations.

Figure 2: Detail of the auto-lock mechanism and the durable Mylar-coated blade.
Setup
The Stanley FatMax Autolock Tape Measure requires minimal setup. Simply remove it from its packaging. Ensure the blade extends and retracts smoothly by pulling it out and pressing the release button. Familiarize yourself with the auto-lock mechanism: the blade will hold its position once extended, and pressing the top button will initiate retraction. The detachable hooks can be attached or removed as needed for specific measuring tasks.

Figure 3: The detachable hook, which can be swapped for the included magnetic or XL hooks.
Operating Instructions
Extending and Locking the Blade
To extend the blade, simply pull it out from the case. The auto-lock mechanism will engage automatically, holding the blade at the desired length. No manual locking switch is required. This feature is particularly useful for single-person measurements or when precise length retention is needed.
Retracting the Blade
To retract the blade, press the large button located on the top of the tape measure. This disengages the auto-lock, allowing the blade to smoothly return into the case. Control the retraction speed by varying pressure on the button.
Using the Tru-Zero End Hook
The Tru-zero end hook is designed to provide accurate measurements for both internal and external dimensions. When measuring an external length (e.g., the outside of a board), the hook's thickness is included in the measurement. When measuring an internal length (e.g., inside a window frame), the hook slides inward, and its thickness is excluded. Always ensure the hook is flush against the surface for precise readings.
Utilizing Detachable Hooks
The tape measure comes with a standard hook and additional magnetic and XL hooks. These can be interchanged by sliding them off and on the end of the blade. The magnetic hook is ideal for attaching to metal surfaces, while the XL hook provides a wider grip for larger materials. Store unused hooks securely in the designated slot on the tape measure body.

Figure 4: Demonstrating a long horizontal measurement, where the auto-lock feature maintains blade extension.

Figure 5: Measuring a vertical distance from an elevated position, showcasing the blade's stand-out capability.

Figure 6: Measuring a vertical distance from below. Note that the blade markings are only on one side, requiring the user to orient the tape for readability.
Maintenance
To ensure the longevity and accuracy of your Stanley FatMax Autolock Tape Measure, follow these maintenance guidelines:
- Keep Clean: Regularly wipe the blade and case with a dry or slightly damp cloth to remove dust, dirt, and debris. Avoid harsh chemicals.
- Dry Storage: Store the tape measure in a dry environment to prevent rust and corrosion, especially on the metal components and blade.
- Avoid Extreme Conditions: Protect the tape measure from extreme temperatures and prolonged exposure to direct sunlight, which can affect the blade and case materials.
- Gentle Retraction: While the auto-lock mechanism is robust, avoid forcing the blade during retraction. Press the button fully for smooth operation.
- Inspect Blade: Periodically check the blade for kinks, bends, or wear that could affect accuracy.
Troubleshooting
Blade Does Not Retract Smoothly
If the blade does not retract smoothly or feels sluggish, it may be due to accumulated dirt or debris inside the case or on the blade. Clean the blade thoroughly. If the issue persists, the internal spring mechanism might be experiencing wear. While the auto-lock feature is designed for durability, prolonged heavy use can slightly reduce the spring's tension over time. This is generally a minor issue and does not typically affect the tape measure's core functionality or accuracy.
Inaccurate Measurements
Ensure the Tru-zero end hook is clean and moves freely. Any debris or damage to the hook can lead to inaccurate readings. Verify that the blade is not kinked or damaged, as this can also compromise accuracy. For critical measurements, always double-check your readings.
Specifications
| Attribute | Detail |
|---|---|
| Brand | STANLEY |
| Model Number | ZSTA-0-33-504 |
| Blade Length | 8 Meters / 26 Feet |
| Blade Width | 32mm (1.26 inches) |
| Blade Stand-Out | 3 Meters |
| Accuracy Class | EC Class II |
| Case Material | Bi-material for enhanced grip |
| Blade Coating | Mylar |
| Item Weight | 0.63 Kilograms (1.39 Pounds) |
| Product Dimensions | 4.57 x 2.4 x 7.17 inches |
What's in the Box
- 1 x Stanley FatMax Pro Autolock Tape Measure (8m/26ft)
- Detachable Magnetic Hook
- Detachable XL Hook
Warranty and Support
For information regarding warranty coverage, product support, or service, please refer to the official STANLEY website or contact their customer service department. Keep your purchase receipt as proof of purchase for any warranty claims.
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