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  4. Dacromet 320 Coated Fasteners

Dacromet 320 Coated Fasteners

Stud Bolts, Nuts, Screws, Threaded Rod & Washers

    For more than 35 years, DACROMET®️ 320 Coated Fasteners like bolt nuts washers & stud bolts are used worldwide for high performance corrosion protection with chrome.
  • Thin dry-film, non-electrolytic, self-lubricated or not
  • Water-based chemistry
  • Passivated zinc and aluminium flakes in a binder, patented chemistry
  • Binder contains chromium oxide (Cr3+ and Cr6+)
  • Metallic silver appearance

Application process :
DACROMET® can be applied by Dip-Spin, Spray or Dip-Drain (Spin) using bulk or rack
Health and Safety :
Aqueous dispersion

Dacromet 320 Characteristics and Performance

  • Coefficient of friction (ISO 16047):
  • Controlled coefficient of friction (ISO 16047): DACROMET® 320 + PLUS® or DACROLUB® topcoat ⇒ μ from 0.06 to 0.19 DACROMET® 500 ⇒ μ = 0.15 ± 0.03 without topcoat
  • No hydrogen embrittlement
  • Excellent assembly and multi-tightening behavior (with lubricated topcoat)
  • Good mechanical damage resistance (trial method D24 1312, USCAR 32) and chemical resistance (trial VDA 621-412)
  • Suitable for high-temperature applications (up to 300°C)
  • Paintable coating
  • Electrical conductivity for most application processes
  • Competitive application costs
  • Bimetallic compatibility with aluminum

Dacromet 320 Corrosion Resistance

Grade Coating Weight Salt Spray Test (ISO 9227) Cyclic Test
DACROMET® 320 Grade A 24 g/m2 240 hours without white rust 600 hours without red rust
DACROMET® 320 Grade B 36 g/m2 240 hours without white rust 1000 hours without red rust
DACROMET® 320 High thickness 80 g/m2 15 Kesternich cycles
  • Results may vary depending on substrate, geometry of parts and type of application processes

Dacromet 320 Specifications

  • ABB (2062 0034-5)
  • BERTIN (85DT88.068)
  • BREDA (V.02.R02 MTE/STE/9609580 [0])
  • CLIPPER (DC-064743-01)
  • EDF (XMA0401T1)
  • EUROTUNNEL (C46 000 MVT NYJX 2723)
  • FIAMM DAE (Q-1-C-033)
  • GEC ALSTHOM (PTG NTO 0432)
  • LYONNAISE DES EAUX (97-10-dacr)
  • MERCURY MARINE (M-124-P)
  • RENAULT TRUCKS (01-71-4002)
  • VOLVO TRUCKS (VCS 5752,52)
  • MAN (MAN 183-2)
  • IVECO (18-1101)