Heavy Duty Drawer Slides with Lock 52 in 3-Fold Full Extension - 200

In this review of the heavy duty drawer slides with lock, the bottom line is simple: these rails are built for heavy, industrial use where full access and a reliable hold are required. The slides deliver a clear advantage for anyone fitting deep drawers in workshops, RVs, vending machines or industrial cabinets because they combine a 200 lb maximum load, a three-fold full extension for total drawer access, and a hold-still lock to prevent accidental movement. Installation requires attention to internal depth and side clearance, but once fitted the slides feel solid and purposeful.

Key Features

• 200 lb load capacity: The slides are made from 2.5mm Q235 steel plate so they can carry heavy contents while maintaining stability under repeated use.
• 3-fold full extension: The three-section design lets the drawer extend fully for complete access to stored items without partially blocked reach.
• Hold-still lock: A yellow locking handle secures the slides when fully open or closed to prevent accidental sliding and keep the drawer stable.
• Durable finish: Electroplated blue zinc surface treatment gives oxidation resistance for long service life in demanding environments.
• Long tested life: The manufacturer reports opening and closing durability up to 800,000 cycles under full load, indicating an emphasis on longevity.
• Wide application range: Designed for industrial drawers, RVs, trucks, vending and safety cabinets where heavy duty performance is needed.

Who It's For

These slides are well suited to installers and end users who need heavy duty, full-extension rails for deep drawers (suitable for drawers with internal depth of 52 to 56 in). They are particularly useful where a secure locked position is important, such as in workshop tool cabinets, truck storage, vending interiors and RV compartments.

Users who want a plug-and-play solution should be aware this set does not include mounting screws and requires precise side clearance (0.75 in each side). If you need a shorter slide, lighter load rating, or an out-of-the-box screw kit, consider alternatives designed for residential cabinetry or shorter drawers.

Pros & Cons

Pros

• Robust construction and high weight capacity make these a durable choice for heavy loads.
• Full extension opens the drawer completely for easy access to the entire contents.
• Locking mechanism holds the slide securely at fully open or fully closed positions for safety and stability.

Cons

• Mounting screws are not included, so users must source appropriate M6 fasteners and ensure precise side clearance during installation.
• Some customers report mixed experiences with lock reliability and installation difficulty, so careful setup is important.

Specifications

Brand	YENUO
Slide length	52 in (fits internal depth 52-56 in)
Width	3 in (76mm)
Maximum load	200 lb
Material	Q235 steel plate, 2.5mm thickness
Finish	Electroplated blue zinc (anti-corrosion)
Extension	3-fold full extension (fully extended length 104 in)

Our Verdict

These heavy duty drawer slides represent strong value for anyone needing full-extension, high-capacity rails with a holding lock for deep industrial or vehicle drawers. They require careful measurement and separate M6 fasteners, and some users may experience varying lock behavior, but the steel construction and long-life finish make them a practical choice for demanding installations.

Frequently Asked Questions

Will these slides fit my drawer?
They are designed for drawers with an internal depth of 52 to 56 in and require 0.75 in clearance each side (total 1.5 in), so measure cabinet and drawer widths before buying.

Are mounting screws included?
No, mounting screws are not included; you should purchase suitable M6 screws based on your installation materials and scenario.

Does the lock hold reliably?
The lock holds the slides in fully open or closed positions, but some users report mixed experiences, so test the lock on both sides and press both handles simultaneously to release.