Special fasteners machined
High-demand threaded parts manufactured through CNC machining, certified materials and dimensional control for industrial applications where a standard fastening solution is not enough.
When a standard screw does not solve the project
In sectors such as energy, hydraulics, nuclear, heavy machinery or critical structures, a screw is not just a fastening element. A defective threaded part can cause downtime, failure or operational risk.
That is why special fasteners are manufactured through precision machining: it allows geometry, thread, tolerances, material, finish and final verification to be controlled according to the real needs of the project.
Non-standard threads
Fine metric, UNF, GAS, ACME, trapezoidal or other special thread geometries.
Custom geometry
Special heads, non-catalogue lengths, recesses, chamfers and drilled features.
Demanding materials
Special stainless steels, Duplex, Superduplex, Inconel, Hastelloy, Titanium and critical alloys.
Real control
Thread, diameter, effective length, concentricity and roughness measurement.
Not all threads are the same
Real industry works with requirements that often do not exist in stock: special pitches, specific tolerances, difficult materials and designs adapted to technical drawings.
Why CNC machining is key for special fasteners
Critical threaded parts require a stable, repeatable and measurable process. CNC machining makes it possible to manufacture complex geometries, maintain constant tolerances and work with materials that do not allow conventional forming processes.
Reduces friction, tightening failures and premature wear.
Makes it possible to manufacture 5, 20 or 50 units with constant tolerances.
Allows threads, holes, chamfers, recesses and transitions to be combined.
Suitable for hard alloys or materials resistant to corrosion and temperature.
The geometry of a special thread is not improvised: it is programmed, machined and verified.
Certified material and industrial traceability
What the material must provide
- Chemical composition real and documented
- Mechanical properties such as hardness, strength or elongation
- Heat number for complete traceability
- Compliance with DIN, ASTM, ISO standards or customer requirements
Common materials
- Special stainless steels · corrosion resistance
- Duplex and Superduplex · aggressive environments
- Inconel and Hastelloy · temperature, chemical and corrosion resistance
- Titanium · lightness, strength and technical applications
Without certified material, a threaded part may look correct but still be unsuitable for a demanding industrial application.
Dimensional control: from machined part to reliable part
A good special fastener manufacturer does not only machine. It also measures, compares and verifies the critical points before delivering the part.
Thread pitch and profile
Verification of the functional profile and fit with the mating part.
Critical diameters
Control of internal diameters, external diameters and bearing areas.
Effective length
Verification of usable thread length and functional dimensions.
Concentricity
Inspection of alignment between thread, body, head and machined areas.
Roughness
Control of surfaces in tightening, contact or sealing areas.
Chamfers and edges
Removal of sharp edges and inspection of functional finishes.
Technical manufacturing process
Drawing review
Geometry, thread, tolerances, material, finish and documentation requirements are analyzed.
Material selection
The certified material is validated according to load, corrosion, temperature and application.
CNC programming
Turning, milling, threading, drilling or finishing strategies are prepared.
Machining
The part is manufactured with process control and dimensional stability.
Verification
Thread, lengths, diameters, concentricity and finish are checked.
Common industrial applications
Special fasteners are not improvised
Certified material
Traceability makes it possible to validate that the part responds to its working environment.
Precision machining
The geometry is manufactured in a controlled way, not through manual adaptation.
Dimensional control
The part is verified before being considered suitable for service.
Technical experience
Special alloys require the right processes, tools and manufacturing criteria.
Special fasteners and threaded parts made to drawing
At AREM-CNC, we manufacture special threaded parts through CNC machining, certified materials, dimensional control and traceability for demanding industrial applications.