Heavy Duty Drawer Slides with Lock 36 in 3-Fold Full Extension - 390

In this review the focus is on a heavy duty side mount drawer slide designed for industrial and heavy-use cabinetry. The slides promise a high load capacity and a locking hold-still feature that keeps drawers secure when fully closed or fully extended; that combination makes these rails a practical choice for anyone who needs a rugged, long-lasting sliding solution. The bottom line: if you need a heavy-duty slide that can carry very large loads and offer full access to the drawer, this product delivers on strength and durability.

Key Features

• Maximum load capacity: Rated to carry up to 390 lb, these slides are built for heavy storage, keeping drawers stable under substantial weight.
• 3-fold full extension: The triple-section design allows the drawer to be pulled out completely so the entire drawer can be accessed easily.
• Hold-still lock: A yellow lock handle secures the slide automatically when fully closed or fully extended to prevent accidental movement.
• Durable construction: Made from 2.5 mm Q235 steel plate and electroplated with blue zinc for corrosion resistance, designed for long service life.
• Built for frequent use: Tested through extensive open/close cycles and engineered to withstand sustained heavy duty operation.

Who It's For

This product is aimed at workshops, industrial cabinets, heavy truck and RV storage, vending machines, and any setting where drawers must hold heavy components or tools. Installers and hobbyists who need a slide that offers full extension and a reliable locking mechanism will appreciate the engineering and load rating.

Those looking for a decorative, light-duty household slide or a product with included mounting screws should look elsewhere; mounting hardware is not included and the rails require precise alignment and sufficient cabinet clearance to install properly.

Pros & Cons

Pros

• Robust weight capacity provides confidence when storing heavy equipment or inventory.
• Smooth ball-bearing action makes opening and closing reliable even under load.
• Locking feature holds the drawer securely at both ends to prevent accidental movement.
• Corrosion-resistant finish and thick steel construction for extended service life.

Cons

• Mounting screws are not included, so additional hardware must be sourced for installation.
• Some users report the lock can become stiff or occasionally stick, requiring gentle simultaneous release on both sides.

Specifications

Brand	YENUO
Slide type	Full extension, 3-fold side mount ball bearing
Length	36 in (pair length excludes lock length)
Width	3 in (76 mm)
Maximum load	390 lb (176 kg) per pair
Material	Q235 steel plate, 2.5 mm thickness
Finish	Electroplated blue zinc, corrosion resistant

Our Verdict

For demanding environments that require full drawer access and the ability to carry very heavy loads, these slides are a sensible, cost-effective choice. They combine strong steel construction, a practical hold-still lock, and a corrosion-resistant finish to deliver long service life; just be prepared to supply your own M6 screws and pay careful attention to installation clearances for reliable operation.

Frequently Asked Questions

Will mounting screws be included?
No. The slides are sold as a pair without mounting screws so M6 screws should be purchased separately to match your installation.

Can the third section be removed?
No. The third section is not disassemblable for safety because these slides are intended for heavy-duty loads.

What cabinet clearance is required?
Allow 0.75 in clearance on each side of the drawer (total 1.5 in) between the inside cabinet width and the outside drawer width for correct fit and movement.