OEM Cancellous Bone Screws Supplier & Exporters

Cancellous bone screws are engineered with a larger outer thread diameter, a thinner core diameter, and a significantly wider thread pitch (typically 1.75mm to 2.75mm) compared to cortical screws. This geometry provides a vastly increased surface contact area to purchase within the porous, spongy lattice of epiphyseal and metaphyseal trabecular bone. Cortical screws, by contrast, possess dense, shallow threads suited for holding rigid, compact cortical bone in diaphyseal segments.

Partially threaded cancellous screws (e.g., 16mm or 32mm thread lengths) are indicated when interfragmentary compression is mandatory—such as in intracapsular femoral neck fractures or subchondral joint depression. Because threads cross the fracture line and engage solely in the far fragment, advancing the screw head against the near cortex generates a powerful lag effect. Fully threaded screws, conversely, are utilized for positional stability or when neutralizing shearing forces without causing fracture collapse or articular over-compression.

ZATH manufactures cancellous bone screws using either Medical Grade Titanium Alloy Ti6Al4V ELI (conforming strictly to ASTM F136 and ISO 5832-3) or High-Purity Vacuum Arc Remelted Stainless Steel 316LVM (ASTM F138 / ISO 5832-1). Every production shipment includes raw material mill test reports, tensile and chemical spectrometry data, and certificates of biocompatibility and surface passivation.

All screw designs are tested in accordance with ASTM F543 (Standard Specification and Test Methods for Metallic Medical Bone Screws). We test torsional yield strength, ultimate torque at break, insertion and removal torque profiles in calibrated synthetic bone blocks, and axial pull-out forces. Detailed test dossiers with stress-strain curves are available for regulatory submission in your target territory.

For standard catalog designs with customized laser markings and private label packaging, our MOQ typically starts at 200–500 units per size specification. For fully customized OEM dimensional geometries requiring specialized CNC programming and validation, initial trial batches of 1,000 units are accommodated. Standard production turnarounds range from 3 to 5 weeks from approved digital engineering drawings.

Yes. ZATH maintains an ISO Class 7 (Class 10,000) cleanroom suite. Implants can be supplied pre-sterilized via validated Ethylene Oxide (EtO) or Gamma irradiation, sealed within double-barrier medical-grade Tyvek blister packaging with a validated 5-year shelf-life stability, saving hospital networks substantial sterilization processing costs.

Absolutely. We manufacture dedicated cannulated screw instrument sets, including parallel drill guides, cannulated depth gauges, quick-coupling hex/torx drivers, tissue protection sleeves, and sterilization trays. We ensure complete ergonomic and mechanical synergy between the instrument set and the screw implant interface.