Invisible Magnet Fasteners 13mm (0.51") | High-Strength Magnetic Snaps 3/4" (19mm)

Experience seamless, invisible closures with our precision-engineered magnetic fasteners, available in two optimized sizes:

1. Compact 13mm (≈0.51") Version - The ultimate discreet solution for lightweight applications

2. Standard 3/4" (19mm) Version - Delivering stronger holding power for heavier-duty uses

Both variants utilize sintered neodymium iron boron (NdFeB) magnets, manufactured to exacting N-series performance standards (as detailed in the attached technical specifications). These innovative fasteners completely disappear within fabrics, leather, or composite materials, providing:

. Our  invisible magnetic fasteners leverage the exceptional power of sintered neodymium iron boron (NdFeB) magnets, engineered to specifications aligned with industry-standard N-series performance grades (referenced from attached technical data). These discreet fasteners vanish completely within fabrics, leather, or composites, delivering robust holding force without bulky snaps, stitches, or visible hardware – the ultimate solution for clean lines in premium bags, apparel, cases, and crafts.

Engineered Core Performance:

• High-Grade NdFeB Magnets: Utilizes sintered neodymium magnets, the strongest permanent magnet material commercially available, corresponding to performance levels within the N30 to N52 range (as per attached specifications).

• Critical Strength Parameters (Referencing Attached Specs):

• Exceptional Holding Force: Enabled by high Remanence (Br) values ranging from 1.08 T (N30) up to 1.48 T (N52), directly translating to powerful magnetic attraction within the compact 13mm diameter.

• Reliable Stability: High Intrinsic Coercivity (Hcj) of 955 kA/m (12 kOe) across all listed grades ensures significant resistance to demagnetization from external fields, impacts, or temperature fluctuations within operational limits.

• Optimized Magnetic Output: The Maximum Energy Product ((BH)max) spans 223-422 kJ/m³ (28-53 MGOe), reflecting the dense magnetic energy stored and utilized efficiently within the fastener pair.

• Temperature Resilience: Rated for continuous operation up to 80°C (176°F), consistent with the Tw specification for N-series grades in the provided data. This ensures dependable performance in typical end-use environments.

Precision Design for Invisible Integration:

• Perfectly Matched Pairs: Each set comprises precisely tolerance-matched male and female units. The female cup houses the potent NdFeB magnet, while the male counterpart contains a high-permeability steel pole piece. This configuration concentrates the magnetic flux for maximum pull force.

• Flush-Mount Engineering: Ultra-low profile design allows for complete embedding within material layers. The installation creates a smooth, uninterrupted surface on both sides – truly invisible when closed.

• Robust Construction: Durable nickel-copper-nickel (Ni-Cu-Ni) triple-layer plating standard on the magnets provides essential corrosion resistance. Steel components are zinc-plated or otherwise treated for longevity.

• Optimized for 13mm (3/4"): This versatile size offers an ideal balance of significant holding power and minimal visibility, suitable for a wide array of applications from lightweight garments to medium-duty bags.

Unmatched Advantages:

1. Aesthetic Superiority: Eliminate visible closures entirely. Achieve sleek, professional finishes critical for high-end fashion, luxury accessories, discreet tech cases, and refined upholstery.

2. Powerful & Secure Hold: Despite their small size, the NdFeB core delivers holding forces significantly exceeding conventional snaps or lower-grade magnets. Confidently secure flaps, pockets, closures, and panels.

3. Simplified Installation: Easier than sewing traditional snaps. Requires only precise hole creation and secure setting of each component into the material layers – often achievable with specialized setting dies or careful manual tools.

4. Reduced Wear & Tear: No moving parts, no friction between metal components during opening/closing. This minimizes fabric stress and tear, extending the lifespan of both the fastener and the host material.

5. Silent Operation: Engage and disengage smoothly and silently, ideal for environments where noise is a concern.

Ideal Applications:

• High-End Luggage & Bags: Hidden closures for flaps, pockets, and main compartments.

• Fashion & Outerwear: Jacket cuffs, collar closures, hidden plackets, accessory attachment.

• Covers & Cases: Tablet sleeves, document holders, portfolio flaps, camera case closures.

• Crafts & DIY: Scrapbooking, fabric art installations, discreet closures on costumes or props.

• Upholstery & Home Textiles: Securing cushion covers, decorative panels, or privacy curtains discreetly.

Selecting Performance (Based on Attached N-Series Data):

• N35/N38/N40: Excellent balance of high strength (Br: 1.17-1.28 T), stability, and value for most 13mm fastener applications.

• N42/N45: Delivers higher maximum energy product (BHmax: 318-366 kJ/m³) for applications demanding the absolute strongest hold possible in this size.

• N48/N50/N52: Offers peak remanence (Br: 1.38-1.48 T) and energy density for maximum pull force where ultimate strength is critical, though often at a premium.

Material & Quality Assurance:
These fasteners are constructed using precisely sintered and magnetized NdFeB material, plated for corrosion resistance, and paired with high-quality steel components. Performance parameters are consistent with the rigorous standards reflected in the provided N-series sintered NdFeB specification data.

Upgrade to Invisible Strength. Ditch the visible hardware without sacrificing security. Our 13mm (3/4") sintered neodymium magnetic fasteners provide the clean aesthetic demanded by discerning designers and makers, backed by the tangible, high-performance characteristics of advanced NdFeB permanent magnet technology, as documented in industry specifications. Experience the seamless fusion of form and formidable function.