ISO 13485:2016 & CE Certified Medical Device Manufacturer

OEM Cortical Screw Titanium Supplier & Factories

Global Contract Manufacturing (CDMO) & OEM Solutions: High-Precision Ti-6Al-4V ELI (ASTM F136) Cortical Fixation Screws Engineered with Sub-Micron CNC Tolerances for Trauma and Reconstructive Surgery.

Integrated Implant Portfolios

Clinical Precision & Compatible Instrumentation

Explore ZATH’s OEM/ODM product configurations engineered to seamlessly interface with cortical screw systems, anatomical locking plates, and joint reconstruction platforms.

Metallurgical Engineering & Biomechanics

Engineering Fundamentals of Medical Titanium Cortical Screws

In modern orthopedic osteosynthesis, the titanium cortical screw serves as the primary mechanical anchor for fracture stabilization, dynamic compression plate (DCP) fixation, and locking reconstruction systems. Precision OEM production demands rigorous adherence to metallurgical specifications and micro-geometric optimization.

Biocompatibility Baseline: ASTM F136 Ti-6Al-4V ELI (Grade 23) vs. Commercial Pure Titanium

Cortical screws experience intense shear, axial tension, and torsional stresses during bicortical engagement. ZATH standardizes raw material procurement on medical-grade extra-low interstitial titanium alloy (Ti-6Al-4V ELI conforming to ASTM F136 / ISO 5832-3). Compared to Grade 4 commercial pure titanium, Ti-6Al-4V ELI provides superior tensile yield strength (>795 MPa) and ultimate tensile strength (>860 MPa), completely mitigating intraoperative head-stripping or shank fracture during high-torque tightening in dense diaphyseal bone.

Thread Profile & Pitch Optimization

Cortical bone requires a shallower thread depth and narrower thread pitch (typically 1.0mm to 1.75mm) compared to cancellous configurations. ZATH designs asymmetrical thread crests with a steep 35° load flank angle to resist pullout forces while maximizing contact area in the compact haversian system.

Self-Tapping Flute Geometry

Equipped with dual or triple parabolic cutting flutes, our self-tapping tips efficiently channel bone debris proximally. This decreases insertional resistance by 34%, eliminates microcracking around the pilot borehole, and guarantees consistent tactile feedback for orthopedic surgeons.

Drive Socket Precision & Stripping Resistance

Offering precision-machined Hexagonal, Cruciate, and Torx (Star-Drive) sockets. Torx recesses achieve a near-zero degree drive angle, distributing torque across six perimeter lobes to allow 40% higher torsional transmission before deformation compared to traditional cross drives.

Nominal Diameter (mm) Core Diameter (mm) Standard Thread Pitch Drive Recess Options Applicable Anatomical Plates Key Testing Standard
Ø 1.5 mm Mini 1.05 ± 0.02 0.50 mm Cruciate / Star T6 Hand, Wrist & Craniofacial Plates ASTM F543 / ISO 6475
Ø 2.0 mm Small 1.38 ± 0.02 0.60 mm Cross / Star T8 Clavicle, Distal Radius, Metatarsal ASTM F543 / ISO 6475
Ø 2.7 mm Small 1.90 ± 0.03 1.00 mm Hex 2.5 / Star T10 Fibula, Ulna, Distal Humerus ASTM F543 / ISO 6475
Ø 3.5 mm Standard 2.40 ± 0.03 1.25 mm Hex 2.5 / Star T15 Small Fragment LCP, Pelvic Reconstruction ASTM F543 / ISO 6475
Ø 4.5 mm Large 3.00 ± 0.04 1.75 mm Hex 3.5 / Star T25 Femoral, Tibial & Humeral Shaft Plates ASTM F543 / ISO 6475
Industry 4.0 Infrastructure

China Smart Factory 4.0: Supply Chain Resilience & Manufacturing Efficiency

Operating since 2009 in the Xinggu Area of Beijing’s Zhongguancun Science Park, Beijing ZhongAnTaiHua Technology Co., Ltd. (ZATH) has built a vertically integrated smart manufacturing facility designed specifically to absorb volatile global demand while keeping production lead times under 4 to 6 weeks.

Multi-Axis Swiss CNC Centers

Our workshop hosts high-speed Swiss-type turning centers capable of complete single-clamping screw machining. Thread whirling, cutting flute milling, and drive broaching are completed simultaneously without re-centering errors.

Automated Laser Metrology

Every batch undergoes non-contact optical comparator and laser thread scanning. Dimensions are checked against 3D CAD master files at ±0.005mm tolerances, ensuring flawless thread runout and zero flank chatter.

Electrochemical Surface Treatment

Dedicated Type II and Type III anodization facilities produce consistent color-coded sizing (Gold, Blue, Green, Magenta) that reinforces anti-galling properties, surface micro-hardness, and instantaneous intraoperative recognition.

Class 100,000 Cleanroom Packaging

Implants are ultrasonic cleaned in multi-stage deionized water cascades, dried, and heat-sealed in medical-grade Tyvek blister packs inside our cleanrooms, backed by verified ISO 11137 Gamma or EO sterilization parameters.

300+
Skilled Workforce & Engineers
100%
Raw Ingot Lot-Traceability
< 0.005mm
CNC Thread Machining Precision
4 - 6 Days
Air Express Global Logistics
Clinical Ecosystem Integration

Macro Industry Solutions: Bridging Trauma, Arthroplasty & Spine Reconstructions

Titanium cortical screws are not isolated consumables; they represent the structural baseline across diverse clinical specialties. ZATH designs compatible screw heads, pitch ratios, and washers that integrate seamlessly across four major orthopedic sectors.

Trauma Fracture Fixation

Combined with our anatomical locking compression plates (LCP), cortical screws provide dynamic interfragmentary compression. By converting rotational torque into axial preload across oblique fracture lines, bone ends achieve primary rigid healing without hypertrophic callus formation.

Acetabular Cup Stabilization

In total hip arthroplasty (THA), titanium cortical screws secure porous press-fit acetabular cups into the ilium and ischium. High pullout resistance protects against micromotion exceeding 150 microns during initial weight bearing, allowing bone trabeculae to colonize porous titanium matrices.

Pelvic & Complex Reconstructions

Pelvic ring fractures involve multi-axial deformities and deep anatomical corridors. Our variable-angle cortical screws deliver reliable bicortical anchorage through pre-shaped reconstruction plates, resisting profound pelvic ring shear and bending stresses.

Enterprise Procurement Framework

What Global Medical Device Brands Require from an OEM Screw Supplier

Procurement directors and regulatory affairs heads at tier-one multinational orthopedic companies require stringent verification metrics before validating an offshore manufacturing partner. ZATH operates as a full-service CDMO offering complete documentation and supply reliability.

Raw Material Chemical Traceability

Every bar of raw titanium is accompanied by metallurgical Mill Test Reports (MTRs) detailing compositional percentages of Carbon, Nitrogen, Iron, Oxygen, and interstitial gases. Ingot-level pedigree guarantees that no uncertified secondary scrap enters production.

Custom Branding, Laser Etch & UDI

We configure automated fiber-laser marking systems to etch your brand trademark, catalog reference, lot ID, and machine-readable GS1 DataMatrix UDI (Unique Device Identification) directly onto the screw heads without generating micro-burrs.

Buffer Stock & Rapid Replenishment

To shield distribution networks from seasonal trauma peaks, ZATH maintains safety stocks of semi-finished screws, delivering standard replenishment orders via international couriers (DHL, FedEx, UPS) within 4 to 6 business days.

Regulatory Assurance

Regulatory Compliance & Global Market Access Assurance

Market expansion hinges upon compliance approval from national health ministries. ZATH equips its global distribution network with complete technical dossiers formulated according to international harmonized standards.

ISO 13485:2016 Certified QMS

Our quality management system is audited for every facet of device design, micro-machining, cleanroom packing, and final product release, eliminating regulatory audit findings for overseas sponsors.

MDR (EU 2017/745) Alignment

Full Technical Dossier (Class IIb) documentation ready for Notified Body submission, including General Safety and Performance Requirements (GSPR) mapping, Clinical Evaluation Reports (CER), and Post-Market Surveillance (PMS) plans.

ISO 10993 Biocompatibility Testing

Complete toxicological evaluations conducted at GLP-accredited laboratories verifying zero cytotoxicity, sensitization, irritation, acute systemic toxicity, subchronic toxicity, and pyrogenicity for long-term implantable devices.

Free Sale Certificates (FSC)

Official governmental Free Sale Documentation issued by national competent authorities accelerates product registration across Southeast Asia, Latin America, the Middle East, and Eastern European healthcare authorities.

Next-Generation R&D

Technology Roadmap & Future Outlook for Cortical Fixation

The biomechanical future of orthopedic osteosynthesis demands smart integration between structural implant metals and biological host tissue. ZATH’s in-house engineering team is actively advancing three developmental vectors.

Porous 3D Additive Surface Structures

Migrating beyond traditional smooth-machined shanks, upcoming titanium screw iterations integrate trabecular-mimetic 3D-printed porous neck sections (pore sizes 300–500 µm). This micro-architecture actively encourages localized cortical bone ingrowth, eliminating long-term hardware loosening in osteoporotic patients.

Antimicrobial Nano-Coatings

Addressing surgical site infections (SSI), our biomaterials lab is testing atomic layer deposition (ALD) of silver-doped hydroxyapatite and titanium dioxide (TiO2) photocatalytic films. These coatings deliver localized bactericidal efficacy against Staphylococcus aureus without compromising osteoblast proliferation.

Bio-Sensor Integrated Fasteners

In partnership with university biomechanics laboratories, research is underway exploring micro-strain telemetry sensors embedded within cannulated screw cavities to measure real-time dynamic load sharing across bone healing phases.

Technical FAQ

Enterprise Sourcing & Engineering Q&A

In-depth technical answers addressing tolerances, materials, OEM customizations, and regulatory documentation for orthopedic procurement specialists.

What titanium grade does ZATH specify for cortical screws, and why not stainless steel 316L?

ZATH exclusively specifies medical-grade Ti-6Al-4V ELI (Grade 23) conforming to ASTM F136 and ISO 5832-3 for our premium cortical screw lines. While 316L stainless steel offers high stiffness, its modulus of elasticity (~200 GPa) is roughly double that of titanium alloy (~110 GPa). Titanium’s lower modulus significantly reduces stress-shielding at the bone plate interface. Furthermore, titanium exhibits superior biocompatibility, eliminates nickel-allergy risks, and produces negligible artifacts under diagnostic MRI and CT imaging.

How does ZATH prevent screw thread stripping and drive-recess cam-out during surgery?

Cam-out resistance is achieved through two engineering controls: (1) Precision-broached Star-Drive (Torx-equivalent) recess geometries with a perpendicular drive wall that prevents screwdriver pop-out under high insertional loads; and (2) Sub-micron CNC whirling of the lead threads that eliminates micro-burrs and maintains a strict 1.0–1.2 ratio between drill bit outer diameter and screw core diameter. This ensures that peak insertional torque remains safely below the screw’s torsional yield point.

What mechanical verification testing is executed prior to batch release?

In full accordance with ASTM F543 (Standard Specification and Test Methods for Metallic Medical Bone Screws), every manufacturing lot is subjected to statistical batch testing evaluating: (1) Torsional yield strength and breaking angle; (2) Driving torque into rigid polyurethane foam test blocks (ASTM F1839); and (3) Axial pullout force. Full quantitative test data certificates are provided with every shipment.

Can ZATH provide private-label branding, customized color anodizing, and OEM sterile blister packaging?

Yes. Over 60% of our production volume is delivered as OEM/ODM contract manufacturing. We offer complete custom branding solutions, including fiber laser etching of client trademarks, custom Type II or Type III color anodization for diameter coding, custom packaging formats (non-sterile bulk autoclavable boxes or sterile-packed double Tyvek blister trays), and customized multi-language IFUs (Instructions for Use).

What are the lead times and minimum order quantities (MOQ) for custom OEM screws?

For standard catalog sizes with customized laser marking, MOQs begin at 100 pieces per size with delivery in 10 to 14 days. For customized screw head geometries or modified pitch profiles requiring specialized tooling, initial prototype samples are delivered within 3 weeks, followed by full production runs within 30 to 45 calendar days.

Advanced Trauma & Spine Systems

Specialized Implant Platforms & Reconstructive Technologies

Broaden your orthopedic portfolio with ZATH’s proven platforms spanning intramedullary fixation, sports medicine suture anchors, and spinal stabilization hardware.