GRENPRO 4-Pack Magnetic Parts Tray Set

GRENPRO's 4-pack magnetic parts tray set secures small metal parts with powerful magnets and durable stainless-steel construction for organized, loss-free work. Whether you're tightening an engine bracket, disassembling a household appliance, or organizing fasteners at a workbench, these four differently sized magnetic trays give you fast, visible storage for metal screws, nuts, and bolts. Built from stainless steel with strong magnetic bases and non-slip treated bottoms, the set includes two round trays and two square/shallow trays to match a range of tasks and part sizes.

How do these trays keep parts from falling or getting lost?

Each tray has a strong magnetic base that attracts and holds ferrous metal parts so they stay put even when the tray is tilted or attached to a vertical metal surface. The result is fewer dropped fasteners and less time searching for small pieces while you work.

• Powerful magnets hold metal parts securely, even upside down.
• Stainless-steel cup resists bending and corrosion for consistent magnetic contact.
• Works attached to toolboxes, car frames, or on flat surfaces without sliding.

Which tray sizes are included and when should I use each?

The set contains a 3.03-inch round tray for small fasteners, a 5.91-inch round tray for medium groupings, a compact square tray for concentrated bits, and a larger shallow tray for longer or more numerous items. Choose the tray that matches the volume and shape of the parts you need to control to keep your workflow efficient.

• 3.03" round — ideal for individual screws, small washers, and delicate pieces.
• 5.91" round — best for mixed bolts, nuts, and grouped fasteners.
• Small square — convenient for clustered small parts or specialty hardware.
• Large shallow — holds longer pieces or multiple fasteners at once.

Will these trays damage surfaces or slide around while I work?

GRENPRO designed the trays with a treated base that reduces slipping and prevents scratches on finished surfaces, so you can set them on a workbench or dashboard without worry. The non-slip finish also helps keep the trays stable during routine movements and light impacts.

• Non-slip base improves grip on smooth and painted surfaces.
• Scratch-resistant treatment protects surfaces beneath the tray.
• Shallow lip and rigid steel body keep parts contained when bumped.

How do these trays fit into automotive or home maintenance routines?

The versatility of the four sizes makes them useful for automotive repairs, appliance maintenance, electronics work, and general tinkering. They let you separate parts by step or location so reassembly is faster and organized.

• Attachable to metal car frames to hold bolts during engine or underbody work.
• Keep appliance screws and small components grouped during disassembly.
• Use on a bench for DIY, electronics assembly, or hobby projects.

Who is this for? This GRENPRO magnetic tray set is aimed at professionals and hobbyists who need dependable, portable parts organization: mechanics, maintenance techs, home DIYers, and anyone who regularly handles small metal hardware. If you value fewer dropped parts, faster reassembly, and a compact, durable storage solution that clamps to metal surfaces, this 4-piece set delivers practical, long-lasting results.

FAQ

Q: Are the trays magnetic enough to hold bolts upside down?

A: Yes. Each tray has a powerful magnetic base designed to hold ferrous metal parts securely, even when inverted or attached vertically.

Q: Will these trays scratch my workbench or painted surfaces?

A: No. The trays include a treated, non-slip base that resists scratching and improves stability on smooth surfaces.