Stainless Steel Dome Nut Acorn

Dome Nuts (Acorn / Cap Nuts)

Our Dome Nuts, commonly known as Acorn Nuts or Cap Nuts, feature a domed top that covers the exposed threaded end of a bolt. This design serves a dual purpose: it prevents injury by covering sharp threads (snag-free safety) and provides a polished, decorative finish to the assembly. We offer all major forms including the standard High Crown for maximum thread clearance and the Low Crown for tight spaces, widely used in architectural metalwork, furniture, and automotive customization.

Technical Specifications

Head Style Hexagonal base with Domed Cap (Closed End)
Forms Available High Type: Standard tall dome (DIN 1587)
Low Type: Short / Thin profile (DIN 917)
Self-Locking: Dome nut with internal Nylon Insert
Thread Type Metric Coarse, Metric Fine, UNC, UNF
Size Range M3 to M36 | 1/8” to 1 1/2” Diameter
Standards DIN 1587 (High), DIN 917 (Low), SAE J483, ASME B18.2.2
Materials Stainless Steel (304, 316), Brass (Decorative), Carbon Steel
Finish Mirror Polished, Chrome Plated, Zinc Plated, Nickel Plated

Key Features & Applications

  • Covers Sharp Thread Edges
  • Architectural Glazing & Railings
  • Aesthetic "Finished" Look
  • Motorcycle & Automotive Chrome
  • Protects Threads from Corrosion
  • Playground Equipment Safety
  • Furniture Assembly
  • Medical & Food Machinery
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