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Titanium Steel 316L PVD 18K Gold Lobster Clasp
Titanium Steel 316L PVD 18K Gold Lobster Clasp

Titanium Steel 316L PVD 18K Gold Lobster Clasp

A marine-grade 316L stainless-steel spring clasp PVD-coated in 18K gold — hypoallergenic, salt-spray rated, for fine and fashion jewelry, waterproof lines and bag hardware.

  • Material 316L surgical-grade stainless steel
  • Surface PVD 18K gold (rose gold / black / steel silver also available)
  • Sizes 7x12 / 8x14 / 9x16 / 10x18 / 12x21 mm
  • Mechanism Spring gate, over 20,000 open/close cycles
  • Corrosion >= 200 hours salt spray (ASTM B 117)
  • Hypoallergenic Nickel ion release < 0.5 ug/cm2/week (EU Nickel Directive)
Product Overview

The 316L PVD 18K gold lobster clasp is a precision jewelry finding for professional jewelers, accessories makers and OEM/ODM clients. Manufactured from marine-grade 316L stainless steel — the same alloy used in surgical instruments — and coated by Physical Vapor Deposition (PVD) with an 18K gold finish, it delivers exceptional corrosion resistance, long-lasting color retention and a mirror-bright look that rivals solid gold findings at a fraction of the cost.

The spring-loaded gate operates with a smooth, positive snap action for secure everyday closure while remaining easy to operate one-handed. Its compact profile and top-mounted jump-ring loop are compatible with box, cable, rolo, rope and snake chains. 316L steel withstands sweat, seawater, perfume and chlorine, making it the preferred choice for waterproof, sports and sensitive-skin jewelry lines.

Size (mm)Loop Inner Dia.Typical Use
7×122.0 mmDelicate bracelets and necklaces
8×142.5 mmFine fashion jewelry
9×163.0 mmGeneral necklaces and bracelets
10×183.0 mmStatement jewelry and small bag charms
12×213.5 mmBag hardware, key fobs, detachable straps
Specifications
Materials316L surgical-grade stainless steel
FinishesPVD 18K gold; rose gold / black PVD / steel silver; IP plating options
Logo MethodLaser engraving of brand name / logo on clasp body (MOQ 1,000 pcs)
Custom SizeCustom jaw opening, length, loop diameter and wall thickness accepted
Custom Packaging100 pcs / polybag; custom reels / organizer boxes / display cards
MOQ500 pcs per size per finish
Sample Time5-7 business days
Production Time10-18 business days after sample approval
ComplianceRoHS / REACH / EU Nickel Directive 2004/96/EC / EN 1811
ServiceOEM & ODM; private-label / white-label; FOB Shenzhen, EXW
Custom Logo Processes
  1. Hard Enamel
  2. Soft Enamel / Cloisonne Badge
  3. 3D Zinc Alloy Die Cast Logo
  4. Etched Metal Nameplate
  5. Printed Epoxy Dome Label
  6. Laser Engraved Mark

Color: Custom colors available upon request. Size: Custom sizes. 3D drawings or dimensions (length, width, thickness) are preferred. Materials: Zinc alloy, stainless steel, brass, aluminum. Plating: Rack plating (economy & mid-range), vacuum plating (premium grade). Salt Spray Test: Standard 48 hours. 72-200 hours available at extra cost. Certification: Notify us in advance if eco-friendly materials and relevant certifications are required.

Why Choose Shanjing?
  • Factory Direct: Direct manufacturing with competitive factory pricing, no extra middleman cost.
  • Flexible Customization: Custom materials, sizes, finishes, logos and packaging for diverse product demands.
  • Reliable Production: Professional manufacturing procedures and strict QC to ensure stable product quality.
  • OEM & ODM Support: Full-process support from initial concept, sampling to mass production and packaging.

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