Cortical Screw Self Tapping

Cortical Screw Self Tapping is a fully threaded orthopedic implant designed specifically for anchoring into dense cortical bone. Its fluted, self-tapping tip cuts its own thread path directly into a pre-drilled pilot hole. This eliminates the need for a separate tapping step and therefore reduces overall operative time. Surgeons widely use these screws alongside orthopedic fixation plates in small, medium, and large fragment procedures.

How the Self-Tapping Design Works

Cortical screws differ from cancellous screws in their thread geometry. The fine pitch and tighter thread spacing suit the compact, hard structure of diaphyseal bone. This design delivers secure thread engagement and reliable pullout resistance in dense cortical tissue. Additionally, the self-tapping tip cuts clean threads within the pilot hole, making placement more straightforward in hard bone.

Material Options

Each screw is available in two material options:

• Premium German Stainless Steel
• Titanium

Both materials are well-established choices for orthopedic bone fixation implants.

Available Sizes and Common Uses

The range covers everything from micro to large fragment fixation:

• 1.5 mm — Micro screw applications for very small bone fixation
• 2.0 mm — Small fragment fixation, including small bones of the hand and foot
• 2.4 mm — Small bone fixation
• 2.7 mm — Small fragment plate systems, commonly for the radius, ulna, and hand
• 3.5 mm — The most widely used size for small and medium fragment plate fixation
• 4.5 mm — Large fragment plate systems, including the femur and tibia; available in lengths from 4 mm to 110 mm

Orthopedic Applications

These self tapping cortical screws suit a variety of orthopedic plate fixation procedures. In small fragment cases — such as the hand, wrist, radius, and ulna — the narrower diameters provide precise fixation. The 3.5 mm size is the most commonly specified for small and medium fragment plate systems. For large bone procedures involving the femur or tibia, the 4.5 mm diameter offers a wide length range of 4 mm to 110 mm to accommodate varying bone depths.

Key Specifications

• Product type: Cortical bone fixation screw
• Design: Self-tapping, fully threaded with fluted tip
• Material: Premium German Stainless Steel / Titanium
• Available diameters: 1.5 mm, 2.0 mm, 2.4 mm, 2.7 mm, 3.5 mm, 4.5 mm
• Length range (4.5 mm): 4 mm to 110 mm
• Applications: Small, medium, and large fragment plate fixation; radius, ulna, hand, foot, femur, tibia, and related orthopedic implant procedures