Tapped M6 Threaded Hole 4 Wheels 21mm OD Sliding Door Rollers

4-Wheel Sliding Door Roller Truck
✔️ Quiet Glide, M6 Thread, 21mm Wheels

This sliding door roller hardware features a durable 4-wheel truck for smooth, quiet door movement. Made from tough plastic and zinc alloy, it’s built to last and easy to install. Great for cabinets, closet doors, or lightweight sliding panels.

✅ Pack size: One roller truck (includes 4 wheels)
✅ Wheel diameter: 21mm
✅ Overall size: 42mm x 22mm x 20mm
✅ Material: Plastic wheels + zinc alloy body
✅ Mounting: M6 threaded screw hole
✅ Smooth, noise-free rolling design
✅ Ideal for sliding doors, enclosures, or furniture

💡 Why use 4-wheel roller trucks on sliding doors and panels?
These trucks are designed for balance and long wear. Here’s what makes them useful in everyday setups:

• Even load distribution for smooth, stable sliding

• Quiet operation - no squeaks or metal grinding

• Easy to install in most track systems

• Works great on wood, glass, or aluminum doors

If you’re looking for an easy upgrade to glide like a dream, this 4-wheel roller gets the job done. Grab one now and let your doors roll smooth and silent!