Orthopaedic screws
Contract manufacturing and custom design solutions
In the field of medical precision machining, the production of orthopaedic screws requires absolute quality standards and micron-level tolerances. Oros represents a strategic partner for OEM companies, offering subcontracted mechanical machining services specialized in internal fixation and osteosynthesis devices.
We manufacture screws for internal fixation and osteosynthesis to customer specifications, in titanium and medical-grade steels. Diameters range from 1.5 to 8.5 mm and lengths up to 250 mm.
Thanks to a quality management system compliant with ISO 13485, we ensure maximum reliability in the manufacture of critical components for orthopedic surgery.
Types of orthopaedic screws manufactured
We support our customers in the production of a wide range of devices for orthopedic surgery:
Cannulated Screws: High-precision machining of central canals for guidewire insertion, ensuring part coaxiality.
Cortical and Cancellous Screws: Thread profiles optimized for anchoring in compact or trabecular bone.
Compression Screws: Components designed to generate compression between bone fragments, promoting healing.
Customized Solutions: Production of screws based on the customer’s technical drawing, handling both prototyping and serial production.
Partially threaded cortical screw
Category: Cortical
Clinical application: Cannulated
Diameter: 1.5–4.5 mm
Length: 10–120 mm
Head type:Cylindrical
Drive recess: Hex / Torx
Thread: Fine
Material: Titanium Ti6Al4V ELI
Other: —
Fully threaded cortical screw
Category: Cortical
Clinical application: Cannulated
Diameter: 1.5–4.5 mm
Length: 10–120 mm
Head type: Cylindrical
Drive recess: Hex / Torx
Thread: Fine
Material: Titanium Ti6Al4V ELI
Other:–
Partially threaded cancellous screw
Category: Cancellous
Clinical application: Cannulated
Diameter: 4.0–8.5 mm
Length: 25–250 mm
Head type: Cylindrical
Drive recess: Hex / Torx
Thread: Wide
Material: Titanium Ti6Al4V ELI
Other: —
Fully threaded cancellous screw
Category: Cancellous
Clinical application: Cannulated
Diameter: 4.0–8.5 mm
Length: 25–250 mm
Head type: Cylindrical
Drive recess: Hex / Torx
Thread: Wide
Material: Titanium Ti6Al4V ELI
Other: —
Double-thread locking screw for plates
Category: Locking
Clinical application: Non-cannulated
Diameter: 1.5–5.9 mm
Length: 5–120 mm
Head type: Threaded
Drive recess: Hex / Torx
Thread: Fine
Material: Titanium Ti6Al4V ELI
Other: —
Smooth-head screw for plates
Category: —
Clinical application: Non-cannulated
Diameter: 1.5–4.5 mm
Length: 6–90 mm
Head type: Countersunk
Drive recess: Hex / Torx
Thread: Fine
Material: Titanium Ti6Al4V ELI
Other: —
Cannulated compression screw with dual thread and different proximal and distal pitch
Category: Compression
Clinical application: Cannulated
Diameter: 2.6–4.5 mm
Length: 10–90 mm
Head type: Countersunk
Drive recess: Hex / Torx
Thread: Fine
Material: Titanium Ti6Al4V ELI
Other: Self-tapping and self-drilling
Headless cannulated compression screw with variable-pitch thread
Category: Compression
Clinical application: Cannulated
Diameter: 2.5–7.3 mm
Length: 12–120 mm
Head type: Countersunk
Drive recess: Hex / Torx
Thread: Fine
Material: Titanium Ti6Al4V ELI
Other: Self-tapping and self-drilling
Biocompatible materials and certified metals
Material selection is essential to ensure the biocompatibility and mechanical strength of implant devices. Our machinery is optimized for processing high-performance metals:
Titanium: We manufacture components in Grade 2, Grade 4, and Grade 5 titanium (Ti6Al4V), ideal for its excellent combination of lightness and strength.
Stainless Steels: We machine medical-grade steels such as AISI 316L (EN1.4404), AISI 420 (EN1.4034), and AISI 630 (EN1.4542) for applications requiring high hardness and corrosion resistance.
Special Alloys: Our expertise also covers complex materials such as MP35N, molybdenum, and Inconel.
Production technology and high-precision machining
To meet the complex geometries of orthopaedic screws — such as variable-pitch threads or low-profile heads — Oros operates a state-of-the-art production department with 23 CNC machines for precision mechanical machining.
| Technology | Operational Capacity |
| Sliding Headstock | CNC sliding-headstock lathes for maximum precision on small-diameter components. |
| Multitasking Centers | Combined turning and milling operations in a single setup. |
| 5-Axis Milling | Five-axis machining centers for complex anatomical geometries and interface seats. |
Oros: excellence in medical micro machining
Our mission is to turn our customers’ projects into tangible products, combining the flexibility of contract manufacturing with the technological rigor required by the medical sector. Every orthopaedic screw leaving our machining centers is the result of a controlled and traceable process designed for clinical excellence. |
Do you have a drawing, a specification or a critical component to develop?
Contact us for an initial technical assessment: we will respond with feedback focused on feasibility, prototyping path, and production.