Heavy Duty Drawer Slides with Lock 44-48in 300 lb Capacity - Full

Our review of these heavy duty drawer slides finds them best for workshops, industrial cabinets, RVs and any application that needs a rugged pair of side-mount rails. The single biggest reason to buy is straightforward: they deliver a true heavy-load solution with a stated 300 lb capacity and a three-fold full extension that lets you access the entire drawer. Installation requires attention to the specified 1.5in total side clearance and parallel alignment, but once mounted the slides offer smooth ball-bearing action and a built-in hold-still lock for secure storage.

Key Features

• Maximum load capacity: Supports up to 300 lb so heavy tools, files or equipment can be stored without the slides sagging.
• Material and strength: Built from 2.5mm Q235 steel plate for high density and durability, reported to be significantly stronger than ordinary slides.
• Corrosion resistance: Electroplated blue zinc surface treatment provides oxidation resistance and long service life in demanding environments.
• Three-fold full extension: The 3-section design allows drawers to extend fully for complete access to stored items in deep cabinets.
• Hold-still locking handle: A yellow lock holds the slide still when fully open or closed, preventing accidental movement and securing contents.
• Wide application range: Suited to goods shelves, industrial drawers, trucks, RVs and vending or safety drawers where heavy loads are common.

Who It's For

These slides are aimed at users who need industrial-strength hardware: cabinet makers, maintenance shops, fleet vehicle fitters and serious DIYers who store heavy items or need full-extension access in deep drawers. Installers who can provide the correct M6 mounting screws and can ensure precise alignment will get the most reliable performance.

People who want a plug-and-play consumer drawer slide for light household cabinetry should look elsewhere, as these are engineered for strength and heavy service life rather than decorative finish or included mounting hardware. Also note the third section is not removable for safety, which may not suit all retrofit scenarios.

Pros & Cons

Pros

• Impressive 300 lb load rating and robust 2.5mm Q235 steel construction for heavy-duty use.
• Smooth ball-bearing action and full three-fold extension make accessing contents simple and complete.
• Durable zinc plating and long projected service life provide corrosion resistance for industrial settings.
• Built-in hold-still lock secures drawer fully open or closed to prevent accidental movement.

Cons

• Mounting screws are not included, and precise 1.5in total side clearance plus parallel alignment are required for proper installation.
• Some users report mixed long-term durability of the lock mechanism when frequently opened under load.

Specifications

Brand	YENUO
Length options	12 to 60 in (pair product available in multiple lengths)
Slide width	3 in (76mm)
Maximum load	300 lb (116 kg)
Material	Q235 steel plate, 2.5mm thickness
Finish	Electroplated blue zinc
Special feature	Hold-still lock with 30mm yellow handle

Our Verdict

These heavy duty side-mount slides are a practical choice when strength and full access are priorities. They deliver a high load rating, smooth full extension and corrosion resistance at a reasonable value for industrial and vehicle applications. Buyers comfortable with sourcing M6 screws and careful alignment will find them durable and functional, though those wanting decorative or fully prepped consumer hardware should consider other options.

Frequently Asked Questions

Do mounting screws come with the slides?
No. The pair is supplied without mounting screws so you should purchase appropriate M6 screws for your installation.

How much side clearance is required?
The slides require 0.75in clearance on each side of the drawer for a total of 1.5in (inside cabinet width minus outside drawer width = 1.5in).

Can the third section be removed for cleaning or adjustment?
No. The third section is not designed to be disassembled for safety and stability under heavy loads.