Buy Dome Nuts Online in Australia
Dome Nuts — Acorn Nuts & Cap Nuts for Thread Protection
Dome nuts (acorn nuts or cap nuts) provide a domed, closed end that protects a protruding thread from corrosion and damage — and eliminates the sharp thread-end hazard on exposed fastener assemblies. AIMS Industrial sells dome nuts in metric zinc-plated, hot-dip galvanised, and 316 stainless steel for safety, appearance, and corrosion protection applications.
Dome Nuts We Stock
- Zinc-Plated Mild Steel Dome Nuts: Metric zinc-plated steel dome nuts (DIN 1587) for general indoor and light-duty applications where thread-end protection and appearance are required without the cost of stainless steel.
- 316 Stainless Steel Dome Nuts: 316 stainless steel dome nuts for marine, food processing, pharmaceutical, and corrosive chemical environments. Used on balustrade rod systems, marine fittings, food equipment, and medical installations where exposed threads must be hygienically protected.
- Galvanised Dome Nuts: Hot-dip galvanised dome nuts for outdoor construction, agricultural, and infrastructure applications where corrosion protection and safety are required — commonly used on fencing, playground equipment, and outdoor structural assemblies.
- Metric Size Range: Dome nuts available from M5 to M16 — covering the most common thread sizes for balustrade systems, machinery guarding, agricultural equipment, and panel fastening.
Dome Nut Application Guide
- Safety Application: Exposed bolt threads on walkways, handrails, playground equipment, and public infrastructure present a laceration hazard. Dome nuts cover the thread end and present a smooth, rounded surface — eliminating the hazard and satisfying relevant safety standards.
- Thread Protection: In corrosive environments, exposed threads corrode rapidly and become difficult to disassemble. Dome nuts protect the thread end and nut assembly from direct corrosive exposure — extending service life and maintainability.
- Height Allowance: Dome nuts are taller than standard hex nuts — allow additional clearance above the assembly surface for the dome profile. The nut height depends on thread size; check the DIN 1587 dimensional table for the applicable size.
Australian Business, Local Supply: As a proudly Australian business since 1988, we stock locally and work with trusted local Australian manufacturers and distributors to ensure fast, reliable supply.
Expert Support: Need help buying the right product for your application? Contact our team for application-specific advice or request a quote.
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