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3.5mm Cannulated Cortical Screw

3.5mm Cannulated Cortical Screw

The 3.5mm Cannulated Cortical Screw is an orthopedic fixation screw for small-fragment fractures, available in titanium and stainless steel in lengths from 10–50mm. Its cannulated shaft accepts a 1.2mm guide wire, and its hemispherical head supports contact with compatible washers and plates when the screw is angled.

Real-World Performance & Utility

The cannulated shaft allows insertion over a 1.2mm guide wire. This guides the screw along the selected trajectory during small-fragment fixation.

The hemispherical head maintains annular contact with washers and plates when the screw sits at an angle. Its low profile helps reduce the possibility of soft tissue irritation around the screw head.

The cortical thread profile is designed to provide pullout resistance and insertion efficiency similar to a standard 3.5mm cortex screw. Short-thread and fully threaded configurations provide different fixation options. Fully threaded screws are intended for fractures requiring little or no compression across the fracture site.

Listed applications include wrist, metacarpal, metatarsal and tarsal fractures. The screw is also indicated for fixation in metacarpal and metatarsal osteotomies and transcondylar humeral fractures in children.

Product Specifications

The 3.5mm Cannulated Cortical Screw is an orthopedic fixation screw for small-fragment fractures, available in titanium and stainless steel in lengths from 10–50mm. Its cannulated shaft accepts a 1.2mm guide wire, and its hemispherical head supports contact with compatible washers and plates when the screw is angled.

Real-World Performance & Utility

The cannulated shaft allows insertion over a 1.2mm guide wire. This guides the screw along the selected trajectory during small-fragment fixation.

The hemispherical head maintains annular contact with washers and plates when the screw sits at an angle. Its low profile helps reduce the possibility of soft tissue irritation around the screw head.

The cortical thread profile is designed to provide pullout resistance and insertion efficiency similar to a standard 3.5mm cortex screw. Short-thread and fully threaded configurations provide different fixation options. Fully threaded screws are intended for fractures requiring little or no compression across the fracture site.

Listed applications include wrist, metacarpal, metatarsal and tarsal fractures. The screw is also indicated for fixation in metacarpal and metatarsal osteotomies and transcondylar humeral fractures in children.

Technical Specifications & Core Capabilities

  • Screw diameter: 3.5mm.
  • Screw lengths: 10–50mm, in 2mm increments.
  • Guide wire compatibility: 1.2mm.
  • Materials: Titanium and stainless steel.
  • Head geometry: Hemispherical head for annular contact with washers and plates during angled placement.
  • Head profile: Low profile to help reduce soft tissue irritation.
  • Thread profile: Designed for pullout resistance and insertion efficiency similar to a standard 3.5mm cortex screw.
  • Catalogue configurations: Short thread, full thread, short thread self-tapping, and full thread self-tapping.
  • Standard short-thread lengths: 4–16mm, depending on screw length.
  • Self-tapping short-thread lengths: 5–16mm, depending on screw length.
  • Fully threaded screw purpose: Stabilization where little or no fracture-site compression is required.
  • Listed indications: Wrist, metacarpal, metatarsal and tarsal fractures; metacarpal and metatarsal osteotomy fixation; transcondylar humeral fractures in children.
3.5mm Cannulated Cortical Screws, Short Thread
Length (mm) Thread Length (mm) Stainless Steel Titanium
10 4 7-120-10 7-120-10Ti
12 4 7-120-12 7-120-12Ti
14 5 7-120-14 7-120-14Ti
16 5 7-120-16 7-120-16Ti
18 6 7-120-18 7-120-18Ti
20 7 7-120-20 7-120-20Ti
22 7 7-120-22 7-120-22Ti
24 8 7-120-24 7-120-24Ti
26 8 7-120-26 7-120-26Ti
28 9 7-120-28 7-120-28Ti
30 10 7-120-30 7-120-30Ti
32 11 7-120-32 7-120-32Ti
34 11 7-120-34 7-120-34Ti
36 12 7-120-36 7-120-36Ti
38 12 7-120-38 7-120-38Ti
40 13 7-120-40 7-120-40Ti
42 14 7-120-42 7-120-42Ti
44 14 7-120-44 7-120-44Ti
46 15 7-120-46 7-120-46Ti
48 15 7-120-48 7-120-48Ti
50 16 7-120-50 7-120-50Ti
3.5mm Cannulated Cortical Screws, Full Thread
Length (mm) Stainless Steel Titanium
10 7-130-10 7-130-10Ti
12 7-130-12 7-130-12Ti
14 7-130-14 7-130-14Ti
16 7-130-16 7-130-16Ti
18 7-130-18 7-130-18Ti
20 7-130-20 7-130-20Ti
22 7-130-22 7-130-22Ti
24 7-130-24 7-130-24Ti
26 7-130-26 7-130-26Ti
28 7-130-28 7-130-28Ti
30 7-130-30 7-130-30Ti
32 7-130-32 7-130-32Ti
34 7-130-34 7-130-34Ti
36 7-130-36 7-130-36Ti
38 7-130-38 7-130-38Ti
40 7-130-40 7-130-40Ti
42 7-130-42 7-130-42Ti
44 7-130-44 7-130-44Ti
46 7-130-46 7-130-46Ti
48 7-130-48 7-130-48Ti
50 7-130-50 7-130-50Ti
3.5mm Cannulated Cortical Screws, Short Thread, Self-Tapping
Length (mm) Thread Length (mm) Stainless Steel Titanium
10 5 7-140-10 7-140-10Ti
12 5 7-140-12 7-140-12Ti
14 5 7-140-14 7-140-14Ti
16 5 7-140-16 7-140-16Ti
18 6 7-140-18 7-140-18Ti
20 7 7-140-20 7-140-20Ti
22 7 7-140-22 7-140-22Ti
24 8 7-140-24 7-140-24Ti
26 8 7-140-26 7-140-26Ti
28 9 7-140-28 7-140-28Ti
30 10 7-140-30 7-140-30Ti
32 11 7-140-32 7-140-32Ti
34 11 7-140-34 7-140-34Ti
36 12 7-140-36 7-140-36Ti
38 12 7-140-38 7-140-38Ti
40 13 7-140-40 7-140-40Ti
42 14 7-140-42 7-140-42Ti
44 14 7-140-44 7-140-44Ti
46 15 7-140-46 7-140-46Ti
48 15 7-140-48 7-140-48Ti
50 16 7-140-50 7-140-50Ti
3.5mm Cannulated Cortical Screws, Full Thread, Self-Tapping
Length (mm) Stainless Steel Titanium
10 7-150-10 7-150-10Ti
12 7-150-12 7-150-12Ti
14 7-150-14 7-150-14Ti
16 7-150-16 7-150-16Ti
18 7-150-18 7-150-18Ti
20 7-150-20 7-150-20Ti
22 7-150-22 7-150-22Ti
24 7-150-24 7-150-24Ti
26 7-150-26 7-150-26Ti
28 7-150-28 7-150-28Ti
30 7-150-30 7-150-30Ti
32 7-150-32 7-150-32Ti
34 7-150-34 7-150-34Ti
36 7-150-36 7-150-36Ti
38 7-150-38 7-150-38Ti
40 7-150-40 7-150-40Ti
42 7-150-42 7-150-42Ti
44 7-150-44 7-150-44Ti
46 7-150-46 7-150-46Ti
48 7-150-48 7-150-48Ti
50 7-150-50 7-150-50Ti

FAQs

What guide wire does the 3.5mm Cannulated Cortical Screw accept?

The cannulated shaft accepts a 1.2mm guide wire.

Which lengths, materials and thread options are available?

The catalogue lists 10–50mm screw lengths in 2mm increments, in titanium and stainless steel. Configurations include short thread, full thread, short thread self-tapping, and full thread self-tapping.

When is a fully threaded screw used?

Fully threaded screws are intended to stabilize fractures where little or no compression across the fracture site is required.

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