3.9 mm Locking Bolt

3.9 mm Locking Bolt

3.9 mm Locking Bolt Specification

  • 3.9 mm Locking Bolt is self tapping. Self tapping bolt cuts its own thread while being driven into the bone. It makes a small hole while entering the bone which creates a tight friction fit between the threads. This helps fight vibration loosening and allows the parts to be taken apart if needed.
  • 3.9 mm Locking Bolt lengths are 22mm, 24mm, 26mm, 28mm, 30mm, 32mm, 34mm, 36mm, 38mm, 40mm, 42mm, 44mm, 46mm, 48mm, 50mm, 52mm, 54mm, 56mm, 58mm, 60mm, 65mm, 70mm, 75mm, 80mm, 85mm, 90mm, 95mm and 100mm.
  • Any additional length sizes of this screw will be made on demand.
  • Bolt is made from pure Titanium and SS 316L.
  • Instruments are available for this screw such as Bone Taps, Combined Drill & Tap Sleeve, Counter Sink, Depth Gauge, Drill Bits, Drill Guide, Drill Sleeve, Hollow Mill Screw Removal, Reverse Measuring Device, Screw Drivers and Screw Holding Forceps etc.

3.9 mm Locking Bolt uses

3.9 mm Locking Bolt is used for the fixation of Expert Tibia Nail, Tibia Nail and Femoral Nail.

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More Products from Interlocking Nails Screws

Different Types of Screws including 3.9 mm Locking Bolt

Locking Cortical Screws

  • 2 mm Locking Cortical Screws
  • 2.4 mm Locking Cortical Screws
  • 2.7 mm Locking Cortical Screws
  • 3.5 mm Locking Cortical Screws
  • 5 mm Locking Cortical Screws

Cortical Screws

  • 1.5 mm Cortical Screws
  • 2 mm Cortical Screws
  • 2.4 mm Cortical Screws
  • 2.7 mm Cortical Screws
  • 3.5 mm Cortical Screws
  • 4.5 mm Cortical Screws

Locking Cancellous Screws

  • 3.5 mm Locking Cancellous Screw
  • 4 mm Locking Cancellous Screw
  • 5 mm Locking Cancellous Screw
  • 6.5 mm Locking Cancellous Screw

Cancellous Screws

  • 3.5 mm Cancellous Screw
  • 4 mm Cancellous Screw
  • 6.5 mm Cancellous Screw

Locking Cannulated Screws

  • 4 mm Locking Cannulated Screw
  • 5 mm Locking Cannulated Screw
  • 6.5 mm Locking Cannulated Cancellous Screw
  • 7.3 mm Locking Cannulated Cancellous Screw

Cannulated Screws

  • 3.5 mm Cannulated Screws (Cortical Thread)
  • 4 mm Cannulated Cancellous Screws
  • 4.5 mm Cannulated Cancellous Screws
  • 6.5 mm Cannulated Cancellous Screws
  • 7 mm Cannulated Cancellous Screws
  • 7.3 mm Cannulated Cancellous Screws

Headless Screws Full Thread

  • 2.5 mm Headless Compression Screws Full Thread
  • 3 mm Headless Compression Screws Full Thread
  • 3.5 mm Headless Compression Screws Full Thread
  • 4 mm Headless Compression Screws Full Thread
  • 4.5 mm Headless Compression Screws Full Thread
  • 5 mm Headless Compression Screws Full Thread
  • 6.5 mm Headless Compression Screws Full Thread

Headless Screws Partially Thread

  • 2.5 mm Headless Compression Screws Partially Thread
  • 3 mm Headless Compression Screws Partially Thread
  • 3.5 mm Headless Compression Screws Partially Thread
  • 4 mm Headless Compression Screws Partially Thread
  • 4.5 mm Headless Compression Screws Partially Thread
  • 5.5 mm Headless Compression Screws Partially Thread
  • 6.5 mm Headless Compression Screws Partially Thread
  • 7.5 mm Headless Compression Screw Partially Thread

Interlocking Nail Screws

  • PFNA2 Blades
  • PFNA Blades
  • 8 mm PFN Bolt Cannulated
  • 6.4 mm PFN Bolt Cannulated
  • 4.9 mm Locking Bolts
  • 3.9 mm Locking Bolts
  • 3.4 mm Locking Bolts

Interference Screw

  • 5 mm Interference Screw
  • 6 mm Interference Screw
  • 7 mm Interference Screw
  • 8 mm Interference Screw
  • 9 mm Interference Screw
  • 10 mm Interference Screw

Herbert Screws

  • 2.5 mm Cannulated Herbert Screws
  • 3 mm Cannulated Herbert Screws
  • 3.5 mm Cannulated Herbert Screws
  • 4 mm Cannulated Herbert Screws
  • 4.5 mm Cannulated Herbert Screws
  • 5.5 mm Cannulated Herbert Screws

DHS-DCS Screws

  • DHS Lag Screws
  • DCS Lag Screws
  • DHS Compression Screws
  • DCS Compression Screws

Malleolar Screws

  • 3.5 mm Malleolar Screws
  • 4.5 mm Malleolar Screws

3.9 mm Locking Bolt Precautions

  • Confirm functionality of instruments and check for wear during reprocessing. Replace worn or damaged instruments prior to use.
  • It is recommended to use the instruments identified for this screw.
  • Handle devices with care and dispose worn bone cutting instruments in a sharps container.
  • Always irrigate and apply suction for removal of debris potentially generated during implantation or removal.

3.9 mm Locking Bolt Warnings

  • 3.9 mm Locking Bolt can break during use (when subjected to excessive forces). While the surgeon must make the final decision on removal of the broken part based on associated risk in doing so, we recommend that whenever possible and practical for the individual patient, the broken part should be removed. Be aware that implants are not as strong as native bone. Implants subjected to substantial loads may fail.
  • Instruments, screws and cut plates may have sharp edges or moving joints that may pinch or tear user’s glove or skin.
  • Take care to remove all fragments that are not fixated during the surgery.
  • While the surgeon must make the final decision on implant removal, we recommend that whenever possible and practical for the individual patient, fixation devices should be removed once their service as an aid to healing is accomplished. Implant removal should be followed by adequate post-operative management to avoid refracture.

3.9 mm Locking Bolt General Adverse Events

As with all major surgical procedures, risks, side effects and adverse events can occur. While many possible reactions may occur, some of the most common include: Problems resulting from anesthesia and patient positioning (e.g. nausea, vomiting, dental injuries, neurological impairments, etc.), thrombosis, embolism, infection, nerve and/or tooth root damage or injury of other critical structures including blood vessels, excessive bleeding, damage to soft tissues incl. swelling, abnormal scar formation, functional impairment of the musculoskeletal system, pain, discomfort or abnormal sensation due to the presence of the device, allergy or hypersensitivity reactions, side effects associated with hardware prominence, loosening, bending, or breakage of the device, mal-union, non-union or delayed union which may lead to breakage of
the implant, reoperation.

Bone screws are the most commonly used orthopedic implants. There are many different types and sizes of screws for different types of bones. Most bone screws are made out of stainless steel or titanium alloys. The outer diameter, root diameter, and thread pitch and angle are important in determining screw mechanics.

In orthopedics, screws are typically described by their outer diameter, for example, a “3.9 mm Locking Bolt” has an outside diameter of 4.9 mm. The pitch of a screw is the linear distance travelled by a screw for one full turn of the screw. The screw advances by a distance equal to the distance between the threads with each full turn. Cortical screws have a lower pitch and therefore more number of threads. Cancellous bone screws have a greater depth of the screw to increase the surface area and therefore improve the purchase, as the bone is weaker.

Screws function by converting the tightening torque into internal tension in the screw and elastic reactions in the surrounding bone. This creates compression between the fracture fragments that the screw is holding together. 3.9 mm Locking Bolt is typically inserted into holes drilled equal to the root diameter and are either self-tapping or are inserted tapped (threaded) holes. The torque to insert cortical bone screws can be high, so the screws must be properly inserted into the correct size drilled hole and designed to withstand insertion torque levels expected in cortical bone. Cancellous bone screws have large, deep threads that grip the spongy bone well. Because of the relatively low strength of the cancellous bone, failure of the screw itself during insertion is rare, but pull out can be an issue.