Synthes 204.830 3.5mm Cortex Screw Self-Tapping 30mm Orthopedic Hardware

Synthes 3.5mm Cortex Screw | Self-Tapping | 30mm Length | 204.830

The Synthes 204.830 is a precision-engineered internal fixation screw designed for use in dense cortical bone. As a 3.5mm diameter screw with a 30mm length, it is a foundational component of the Synthes Small Fragment System. This screw is designed to provide maximum compression and stability in diaphyseal bone, making it the clinical standard for treating fractures of the radius, ulna, fibula, and humerus.

The specialized self-tapping tip features sharp cutting flutes that carve a precise thread path as the screw is advanced into a pre-drilled pilot hole. This eliminates the separate tapping step, significantly reducing operative time and minimizing the risk of thermal necrosis in the surrounding bone.

Key Specifications

• Manufacturer: Synthes (DePuy Synthes)

• Model / REF: 204.830

• Material: 316L Stainless Steel (Surgical Grade)

• Screw Diameter: 3.5 mm

• Thread Profile: Self-Tapping

• Screw Length: 30 mm

• Core Diameter: 2.4 mm

• Head Type: Hexagonal socket (2.5 mm)

• Quantity: Individually Packaged, Sterile

Technical & Clinical Advantages

• Self-Tapping Efficiency: The distal cutting flutes allow for direct insertion after drilling the initial pilot hole ($2.5\text{mm}$). This streamlines the surgical workflow and ensures a high-tolerance "interference fit" between the screw threads and the cortical bone.

• Optimized Cortical Pitch: The fine thread pitch is specifically designed for dense cortical bone, providing superior surface area contact and high pull-out resistance compared to cancellous designs.

• High Torque Hexagonal Drive: The 2.5mm hexagonal recess allows for the transmission of high insertion torque without the risk of "cam-out" or stripping the screw head, ensuring secure final seating.

• Low-Profile Head Geometry: The spherical head is designed to sit flush within the counter-sunk holes of Synthes Dynamic Compression Plates (DCP) or Locking Compression Plates (LCP), providing stable plate-to-bone apposition.

• 316L Stainless Steel Biocompatibility: Cold-worked for high fatigue strength, the material is biologically inert and designed to withstand the cyclic loads of functional rehabilitation.

Applications

• Trauma Surgery: Fixation of diaphyseal fractures in the forearm, lower leg, and pelvic ring.

• Plate Fixation: Serving as a "neutralization" or "compression" screw when used through 3.5mm LCP or DCP plating systems.

• Lag-Screw Technique: Providing inter-fragmentary compression for oblique or spiral fracture lines when used with a 3.5mm gliding hole.

• Osteotomy Stabilization: Securely holding bone alignments following reconstructive realignment procedures.

Condition & Quality Assurance

• Status: NEW — Factory Sealed & Sterile.

• Integrity: This implant is securely packaged within its original manufacturer's sterile peel-pouch. The packaging is intact, ensuring the product's sterility, material integrity, and full lot traceability ($2026$ compliance) for clinical implantation.

• Professional Standards: With over 25 years of experience in orthopedic technology, Primis Medical ensures all Synthes implants are stored in climate-controlled environments to preserve the structural and sterile integrity of the hardware.

Shipping & Handling

• Secure Logistics: Shipped in protective packaging to ensure the sterile barrier remains uncompromised and the self-tapping flutes remain sharp.

• Fast Dispatch: Ships within 1 business day.