Monel 400 Hexagon Vespel Insert Lock Nut For Higher Temperature Corrosive Applications

Monel 400 Hexagon Vespel Insert Lock Nut for Higher Temperature or Corrosive Applications

Built for the hardest environments, this Monel 400 hexagon lock nut combines a corrosion-resistant Monel 400 (UNS N04400) nickel-copper alloy body with a Vespel polyimide insert. It is designed for higher temperature or corrosive applications where standard lock nuts quickly fail, holding locking torque in seawater, acids, alkali and elevated-temperature joints.

Key Selling Points

• Higher Temperature — Vespel insert holds locking torque up to 260°C continuous.
• Corrosive Applications — Monel 400 resists seawater, acids and alkali.
• Vespel Insert — non-metallic polyimide insert for reusable prevailing-torque locking.
• Vibration Resistant — keeps joints tight under vibration and thermal cycling.
• Non-Magnetic — suitable for instrumentation and sensitive assemblies.

Specifications

Applications

Higher-temperature process equipment, chemical and petrochemical plants, marine and offshore hardware, heat exchangers, pumps and valves, oil & gas, and desalination systems.

Typical Higher Temperature & Corrosive Service

• Steam, exhaust and process lines where nylon-insert nuts cannot survive.
• Chemical and seawater joints exposed to aggressive media.
• Equipment subject to thermal cycling and vibration.

Packaging & Service

Small MOQ available. Standard export carton and plywood case packing, or as per customer requirement. OEM / ODM service welcome.