What orthopedic product lines does ZATH manufacture?

ZATH manufactures five platforms: joint replacement (hip and knee), spine (pedicle screw, MIS, anterior cervical plate, fusion cage and vertebroplasty), trauma (locking plates, intramedullary nails, cannulated screws, external fixation, pin and cable), sports medicine (suture anchors, buttons, staples) and matching surgical instrument sets.

Is ZATH certified to ISO 13485?

Yes. ZATH operates an ISO 13485-certified quality management system covering design, manufacturing, inspection, sterilization packaging and storage. Certificate copies are available to qualified distributors on request.

Are ZATH implants supplied sterile?

All ZATH implant series are available in sterile packaging, which helps hospitals shorten operating room preparation time and supports infection control protocols.

Does ZATH support OEM and ODM orders?

Yes. Logo, size range, appearance, colour and packaging can be customized to distributor and regional registration requirements.

How fast is international delivery?

Express shipments are dispatched via DHL, FedEx, TNT, UPS or EMS, typically arriving within 4 to 6 days depending on destination and customs clearance.

High-Quality Cortical Screws 120 Mm Supplier & Factory

Surgical Solutions Catalog

Engineered Fixation & Reconstruction Assemblies

Explore our precision-machined orthopedic devices, trauma fixation systems, and specialized instrument sets engineered to complement deep cortical anchoring.

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Clinical Biomechanics

Engineering Principles of Extended 120 mm Cortical Screws

In high-energy polytrauma, distal femoral reconstruction, and pelvic ring stabilizes, standard screw dimensions fail to bridge extensive cortical voids. The 120 mm cortical screw addresses rigorous axial load and torsional demands.

Optimized Pitch & Core Diameter

Configured with a fine pitch (1.25 mm to 1.75 mm) tailored specifically for dense diaphysis bone purchase, preventing micro-stripping when engaging contralateral bicortical walls over long 120 mm shaft lengths.

Anti-Torsional Yield Dynamics

Machined from Grade 5 Ti-6Al-4V ELI or 316L medical stainless steel, calibrated to withstand severe shear stresses encountered during dynamic axial loading without plastic deformation or head fatigue.

Self-Tapping Flute Geometries

Precision-engineered cutting flutes clear bone debris efficiently during deep insertion, minimizing peak thermal osteonecrosis and maintaining consistent driving torque up to the final 120 mm seated depth.

Nominal Diameter	Thread Pitch	Core Diameter	Drive Interface	Raw Material Options	Standard Compliance
Ø 3.5 mm	1.25 mm	2.4 mm	Hexagonal 2.5 / Torx T15	Ti-6Al-4V ELI / 316L VM	ISO 5832-3 / ASTM F136
Ø 4.5 mm	1.75 mm	3.0 mm	Hexagonal 3.5 / Torx T25	Ti-6Al-4V ELI / 316L VM	ISO 5832-1 / ASTM F138
Ø 5.0 mm	1.75 mm	3.4 mm	Torx T25 / StarDrive	Ti-6Al-4V ELI	ISO 13485 Controlled

Industrial Capability

Why Source from China's Premier Implant Facilities

Beijing ZhongAnTaiHua Technology Co., Ltd. (ZATH) merges global regulatory rigor with vertically integrated manufacturing in the Zhongguancun Science Park.

Sub-Micron Swiss-Type CNC Machining

Equipped with ultra-precision multi-axis Swiss lathe systems, ensuring absolute concentricity across extended 120 mm shafts and eliminating run-out errors that lead to screw-head stripping.

ISO 13485 Medical Device Ecosystem

Fully audited quality management protocols oversee every phase: raw ingot ultrasonic testing, CNC threading, electro-polishing, cleanroom packaging, and gamma/EtO sterilization.

Agile Supply Chain Resilience

Direct access to world-class certified metallurgical bases in China ensures stable production volume, cost advantages without compromising metallurgy, and express worldwide delivery in 4–6 days.

15+

Years Orthopedic Manufacturing Excellence

300+

Specialized Production Personnel & Technicians

100%

Full Raw-Material Lot Traceability

60+

Countries Utilizing ZATH Surgical Implants

Surgical Applications

Clinical Scenarios & Surgical Solutions

Where deep bicortical purchase is mandatory: reviewing real-world surgical indications requiring 120 mm cortical screw fixation stability.

Pelvic & Acetabular Reconstruction

Anterior and posterior column fractures demand extended fixation pathways (anterior inferior iliac spine to posterior ilium). 120 mm screws provide superior interfragmentary compression across pelvic ring instabilities.

Complex Supracondylar Femoral Plating

Used with dynamic condylar or locking compression plates where oblique fixation through distal metaphyseal-diaphyseal transitions requires long bicortical reach to restore longitudinal alignment.

Non-Union & Periprosthetic Fixation

When stabilizing refractures or non-unions around total hip stems, 120 mm screws provide bicortical fixation around bulky cemented or press-fit stems when combined with specialized cable-plate constructs.

Global Procurement Demands

Macro Trends & Tender Evaluation Criteria

Hospitals, national healthcare groups, and medical distributors evaluate suppliers on strict clinical indicators beyond basic piece-price economics.

Sterile Single-Unit Packaging

Global shift away from unsterile bulk trays toward pre-sterilized, double-blister Tyvek packaging that minimizes nosocomial infections and streamlines operating room turnaround time.

Complete MDR Documentation

Distributors need ready technical documentation files, bio-compatibility test reports (ISO 10993), and risk analysis dossiers for seamless national health authority submissions.

Inventory Lean Consignment

Demand for rapid replenishment agility. With DHL/FedEx logistics handling orders in 4–6 days, hospital networks run leaner inventories without risking emergency room stock-outs.

Custom Instrumentation & OEM

Bespoke screwdriver drive interfaces (Torx vs Hexagonal), specialized color anodization, laser marking, and customized sterilization trays configured to regional surgical preferences.

Clinical FAQ

Frequently Asked Questions for Procurement Officers

Clear, definitive answers to technical, regulatory, and supply chain queries regarding cortical screws and reconstructive orthopedic systems.

What are the key biomechanical advantages of 120 mm cortical screws in deep trauma?

A 120 mm cortical screw provides extensive bridging capability across large pelvic bones, femoral shaft reconstructive areas, or periprosthetic segments where standard 40–80 mm screws cannot establish purchase. Its narrow pitch ensures solid thread engagement into distant dense cortical walls, maximizing shear resistance and resisting rotational loosening under physiological limb loading.

Which material grade is recommended: Ti-6Al-4V ELI or 316L Stainless Steel?

Both materials comply with strict international standards: Ti-6Al-4V ELI (ASTM F136 / ISO 5832-3) offers superior fatigue life, lower modulus of elasticity (closer to bone), and reduced artifacting under MRI/CT scans. Medical-grade 316L Stainless Steel (ASTM F138 / ISO 5832-1) delivers high yield strength and economic value for trauma systems. The choice depends on surgeon preference and compatibility with matching plate systems to prevent galvanic corrosion.

How does ZATH guarantee concentricity and thread integrity across extended 120 mm lengths?

Extended screws can be prone to slight runout during production. ZATH eliminates this risk by utilizing ultra-rigid multi-axis Swiss-type longitudinal turning lathes with specialized high-precision steady rests. Each batch undergoes optical profile projector verification and laser micrometry to guarantee zero axial deflection and uniform thread profile across the full 120 mm length.

Can ZATH provide matching surgical instrumentation and drills for 120 mm insertion?

Yes. Standard drills and depth gauges often lack the clearance needed for deep bicortical reach. ZATH engineers extended-reach calibrated drills, extra-long depth gauges, and sleeve-guided screwdriver shafts designed to deliver stable insertion torque directly to the screw head without tilting or slippage.

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

We support flexible ordering for qualified distributors. Standard configurations carry minimal MOQ constraints, while custom OEM branding, tailored anodization colors, and bespoke packaging configurations are supported with short turnarounds. Express shipments are dispatched via international air couriers within 4 to 6 business days.

Integrated Systems

Complementary Orthopedic Assemblies

Connect our deep-bone cortical fasteners with matching intramedullary, spinal, and reconstruction systems engineered under the same ISO 13485 quality system.

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