Value Collection DN7XX01800 Stainless Steel Acorn Nut

Product Description

The VALUE COLLECTION DN7XX01800 is a stainless steel acorn nut in M18x2.5 metric coarse thread, designed to cap and protect exposed bolt ends in structural and mechanical assemblies. The domed cap profile covers the threaded fastener end, preventing thread damage, corrosion, and contact hazards. Manufactured from Austenitic A4 stainless steel, this nut delivers strong corrosion resistance in wet, marine, and chemical-exposure environments. The 27mm width across flats accommodates standard metric wrenches, and the 32mm overall height provides the clearance typical of DIN 1587 cap nut geometry. Weighing 0.1 pounds, this is a single-piece fastener suited for industrial, plumbing, and structural applications.

This acorn nut is appropriate for use in applications where thread-end protection and a finished appearance are required. Common install scenarios include pipe flange assemblies, equipment mounting hardware, marine and outdoor structural connections, and any assembly where exposed fastener ends present a safety or corrosion concern. The A4 material grade makes it particularly well suited for saltwater and high-humidity environments. Right-hand thread direction is standard for most fastener assemblies. Installers working on pool, HVAC, and plumbing mechanical systems will encounter this fastener size in pipe flange and bracket mounting contexts.

Key Features

• M18x2.5 metric coarse right-hand thread for broad compatibility with standard metric fastener assemblies
• Austenitic A4 stainless steel construction provides corrosion resistance in marine, wet, and chemical environments
• Domed acorn cap profile protects exposed bolt threads and presents a clean, finished appearance
• 27mm width across flats fits standard metric wrenches and sockets
• Conforms to DIN 1587 dimensional standard for cap nuts
• Uncoated finish — no surface treatment to delaminate or interfere with electrical or chemical compatibility requirements

Compatibility

Designed as an OEM-style replacement or aftermarket fastener for metric M18x2.5 coarse-thread bolts and studs in structural, mechanical, and plumbing assemblies conforming to DIN 1587 specifications.

Installation Notes

Installation requires a standard metric wrench or socket sized for 27mm width across flats. Power down or de-pressurize any system before removing or replacing fasteners on active assemblies. Do not over-torque stainless steel fasteners, as galling can occur — apply anti-seize compound to the threads before installation when working in high-heat or corrosive environments. Follow applicable mechanical and structural codes for fastener torque class and material grade requirements in your jurisdiction.