SMON6929 1/4 x 1/4 Inch Neodymium Rare Earth Magnetic Clasp N42 (1 Pair Pack)

Brand Description

Stanford Magnets, a company specializing in the research and production of advanced materials, guarantees that each of its products reaches international leading standards through meticulous craftsmanship and strict quality control. The 1/4" Magnetic Clasps N42 (Pair) deliver reliable 42 MGOe magnetic strength with corrosion-resistant plating, engineered for secure closures in jewelry, accessories, and medical wearables requiring effortless operation and durability.

Related Products: Plastic Coated Magnets

1/4 x 1/4 Inch Neodymium Rare Earth Magnetic Clasp N42 (1 Pair Pack) Specifications

Properties

*The above product information is based on theoretical data. For specific requirements and detailed inquiries, please contact us.

1/4 x 1/4 Inch Neodymium Rare Earth Magnetic Clasp N42 (1 Pair Pack) Description

These magnetic clasps feature sintered NdFeB alloy cores with a 42 MGOe energy product. Each 6.35 mm diameter clasp maintains a low-profile 1.8 mm thickness with precision-engineered push-pull mechanics for single-handed operation. Triple-layer nickel-copper-nickel plating ensures hypoallergenic contact and withstands 500+ hours of salt spray testing (ASTM B117), preventing corrosion in humid environments. The male/female pair generates ≥1.2 kg holding force while requiring only 0.4–0.6 kg separation force, balancing security with accessibility. Thermal stability is maintained up to 80°C, with polished edges preventing fabric snagging. The design minimizes magnetic interference (<5 Gauss at 2 cm) for compatibility with sensitive electronics.

1/4 x 1/4 Inch Neodymium Rare Earth Magnetic Clasp N42 (1 Pair Pack) Applications

Jewelry: Secure closures for necklaces, bracelets, and anklets

Medical Wearables: Fasteners for patient monitors and biometric sensors

Luxury Accessories: Bag clasps, watch bands, and eyewear retention

Adaptive Clothing: Magnetic closures for easy-donning garments

Consumer Tech: Latch systems for VR headsets and portable devices

1/4 x 1/4 Inch Neodymium Rare Earth Magnetic Clasp N42 (1 Pair Pack) Packaging

To ensure safety during transportation and compliance with shipping regulations, all magnets are securely packed with a metal shielding layer inside the box. This prevents magnetic interference with surrounding items and protects the product from external damage.

Packaging: Carton, Wooden Box, or Customized.

1/4 x 1/4 Inch Neodymium Rare Earth Magnetic Clasp N42 (1 Pair Pack) FAQs

Q1. Are nickel-plated clasps hypoallergenic?

Yes, triple-layer plating creates a skin barrier. Passes ISO 10993-10 biocompatibility tests.

Q2. Can they hold heavy pendants?

Max. vertical load: 1.2 kg. For pendants >15g, add a secondary security chain.

Q3. How long does the magnetic strength last?

No decay if stored below 80°C. Annual flux loss <0.1% under normal conditions.

Related Information

1. Common Preparation Methods

The clasps are manufactured by compacting NdFeB powder in disc-shaped dies under a 1.8 T magnetic field. Sintering at 1,080°C fuses particles into dense blanks, which are diamond-ground to ±0.05 mm tolerances. Electroplating applies copper undercoating (5 μm), followed by dual nickel layers (10 μm total) for corrosion resistance. Male/female components are press-fitted with stainless steel spring mechanisms and laser-welded for structural integrity. After magnetizing through the thickness axis with a 3.0 T pulsed field, each pair undergoes force validation (0.4–0.6 kg opening / ≥1.2 kg holding) and rotational alignment checks before nitrogen-flushed packaging.