For a special alloy fastener factory, a Heavy-Duty CNC Hydraulic Two-Roll or Three-Roll Cylindrical Thread Rolling Machine is the ideal choice. Special alloys like Monel 400 work-harden rapidly and demand extreme, rigid rolling pressure to displace material without breaking the cold-working dies
Monel 400 bolt Monel 400 maintains immaculate grain flow and up to 40% higher fatigue resistance. For components requiring exact concentricity, including specialized tapped blanks for a, our 3-die CNC equipment eliminates radial distortion to deliver precise Class 3A thread tolerances. Contact our regional hub today to request a quote on custom alloy runs.
1. Technical Specification & Capacity of Monel fasteners
Procurement engineers search by specific sizes and standards. A clean, scannable table proves your factory can handle their specific order.
- Size Range: (e.g., M6 to M64 / 1/4" to 2-1/2")
- Thread Types: Metric (UNC, UNF), BSW, Acme, Trapezoidal, and custom pitches.
- Standards Complied: ASTM B164 (Monel 400 bar stock), ASME B18.2.1, DIN 931/933.
- Thread Classes: Class 2A/3A or 6g/4h for high-precision aerospace and marine applications.
2.Why Choose Rolled Threads for Marine Alloys?
We do not cut threads. We roll them. Because Monel 400 (UNS N04400) work-hardens rapidly, traditional lathe-cutting creates microscopic surface tears that invite stress corrosion cracking (SCC) in saltwater.
Our heavy-duty hydraulic thread rolling process delivers significant engineering advantages:
- Zero Material Waste: Cold-forming eliminates expensive scrap shavings, lowering your total cost per unit on costly nickel-copper alloys.
- Interrupted Grain Flow: Rolling redirects the material’s grain structure to mimic the thread profile, boosting thread root fatigue strength by up to 40%.
- Vibration Resistance: Provides a mirror-like burnished finish (Ra 0.4μm) that dramatically minimizes galling when tightening a Monel 400 nut to its matching bolt.
3. Submit Your RFQ or Engineering Drawings
Partner with a special alloy fastener factory that speaks the language of industrial engineering. Upload your blueprints, standard requests, or bill of materials today.Our factory will quote the Monel400 fasteners price in one day.


