We supply Neodymium countersunk magnets designed for screw mounting.
Unlike standard disc magnets that require adhesives, these feature a countersunk hole that accepts flat-head screws.
Mount them securely to timber, plastic, or metal surfaces with standard hardware.
Ideal for cabinetry, exhibition displays, door latches, and architectural fixtures.
The countersunk hole is precisely machined so the screw head sits flush with the magnet face – no protrusion, clean finish.
The “Matched Pair” System (Critical for this Product)
Most buyers don’t realize that if they want to use two countersunk magnets to stick together (e.g., a door latch), they need opposite poles on the countersunk face.
Understanding Polarity:
Depending on your application, you must choose the correct magnetization direction:
Magnet-to-Steel: (e.g., sticking a tool to a wall).
Recommendation:
– Polarity does not matter.
– You can use all “North” or all “South” magnets.
Magnet-to-Magnet: (e.g., a cabinet door latch).
Recommendation:
– You need Matched Pairs.
Our Service:
We supply these as labeled pairs
(Side A: North Pole on Countersink / Side B: South Pole on Countersink) to ensure they attract, not repel.
Installation Advice: The “Torque” Warning
This is the expert section that prevents bad reviews.
Sintered Neodymium is not steel; it is a ceramic.
Preventing Breakage:
The thin wall between the countersunk hole and the bottom of the magnet is the weakest point.
– The Rule: Do not over-tighten the screw.
– The Risk: Excessive torque will crack the magnet instantly.
Our Tip:
We recommend hand-tightening screws rather than using high-torque power drills.
For high-stress applications, ask us about our “Pot Magnet” version (steel cup), which is virtually unbreakable.
Product Variations
1). Single Countersink: One hole in the center. (Most common).
2). Double Countersink: Holes on both sides (reversible).
3). Multi-Hole Blocks: Rectangular magnets with 2 or more countersunk holes for non-rotational stability.
4). Oval/Slot Holes: To allow for adjustment/alignment during installation.
Value-Added Service: Kitting
Don’t just buy the magnet; buy the solution.
We can supply Assembly Kits that include:
1). The Countersunk Magnets.
2). Matching Stainless Steel Screws (Non-magnetic screws are recommended to prevent magnetic interference during installation).
3). Steel Strike Plates (Counter-plates).
4). 3M Adhesive Backing (optional hybrid fixing).
Applications
Joinery & Cabinetry: Invisible door catches.
Retail Displays: Mounting heavy signage that needs to be removable.
Workshops: Tool holders screwed into walls.
Lighting: Magnetic mounts for ceiling fixtures.
Ordering Guide
To get an accurate quote, please specify:
– Outer Dimensions: Diameter x Thickness.
– Screw Size: (e.g., “Must fit an M4 screw”).
– Pairing: “Single Polarity” (for use on steel) or “Matched Pairs” (for use with other magnets)?
– Grade: N42 is usually sufficient for holding; upgrade to N52 only if space is limited.
Available Dimensions
For regular countersunk disc, we can offer:
Minimum = D5 x D1.2 x 5.0 mm (Countersunk hole = D2.5 mm)
Maximum = D40 x D6.8 x 9.0 mm (Countersunk hole = D13.5 mm)
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