Midwest Fasteners Class 8 Zinc Plated Steel Metric Acorn Cap Nut

Midwest Fasteners Class 8 Zinc Plated Steel Metric Acorn Cap Nut

The Midwest Fasteners Acorn Cap Nut is a Class 8 steel cap nut finished in zinc plating for corrosion resistance and a clean, finished appearance. This family of acorn (dome) cap nuts is available in metric thread sizes 4mm-.7, 6mm-1.0 and 8mm-1.25, giving fabricators, maintenance techs and contractors a protective, decorative nut cover for a wide range of bolt and stud assemblies. Acorn-style cap nuts enclose exposed external threads, protecting against snags, injury and thread corrosion while giving a finished look to any visible fastener assembly. Built from steel and rated Class 8 across every size in the line, these cap nuts deliver dependable strength for general fastening work where a decorative, protective nut cover is required.

Key Features

• Size Range: Available in metric thread sizes 4mm-.7, 6mm-1.0 and 8mm-1.25 to match a wide range of standard metric bolts and studs.
• Product Type: Acorn-style (dome) cap nut designed to cover and protect exposed external threads on bolts and studs.
• Material & Finish: Steel construction with a zinc finish for added corrosion resistance and a bright, finished appearance.
• Grade: Class 8 steel across every size in the line, providing solid strength for general-purpose fastening and assembly applications.
• Design: Domed closed-end profile shields thread tips from damage, dirt and contact injury while sealing out moisture.
• Finish Benefit: Zinc plating helps resist surface rust and corrosion in typical indoor and light outdoor use.
• Compatibility: Threads onto standard external bolt and stud threads in the corresponding metric size to complete the fastener assembly with a finished cap.

Technical Specifications

• Product Type: Cap Nut
• Product Finish: Zinc
• Grade: Class 8
• Product Material: Steel
• Nut Size Options: 4mm-.7, 6mm-1.0, 8mm-1.25

Typical Applications

• Finishing exposed bolt or stud ends on furniture, fixtures and equipment for a clean appearance.
• Protecting personnel from sharp or exposed thread ends on machinery, railings and fixtures.
• Sealing thread ends against moisture and debris in light industrial and maintenance settings.
• General assembly work where a decorative, protective nut cover is preferred over a standard hex nut.
• Maintenance and repair tasks requiring a zinc-plated steel cap nut for everyday fastening needs across the 4mm-.7 to 8mm-1.25 metric size range.

Why Midwest Fasteners?

Midwest Fasteners builds this Class 8 steel acorn cap nut family with a consistent zinc finish across every size offered, giving contractors, maintenance techs and fabricators a reliable, corrosion-resistant option for protecting and finishing exposed threads. Consistent sizing, material and finish across the 4mm-.7 through 8mm-1.25 range make this a dependable choice for professional assembly and repair work where both appearance and thread protection matter.