Standard Expansion Screw

• Material: stainless steel
• Expansion screw holder: Cone-shaped 
• Maximum Expansion:
  - Mini: 6.5mm
  - Medium: 7.5mm
  - Maxi: 7.5mm
• Skeleton design
• Holes in body of screws for better retention in acrylic
• Built-in stops prevent screws from coming apart once maximum expansion has been achieved
• 4 x 1 /4 turn  Mini =0.7 mm
• 4 x 1 /4 turn  Medium =0.8 mm
• 4 x 1 /4 turn  Maxi =0.8 mm
• With expansion screw key, standard (straight, small).
• Indication:
  - Mini : for transverse expansion and distalization in the mandible or for especially narrow maxillae
  - Medium: for transverse expansion and distalization in maxilla and mandible
  
  - Maxi: for transverse expansion in the maxilla
• Directional arrow:
  - Mini: Plastic, white
  - Medium: Plastic, neon yellow
  - Maxi:  Plastic, neon yellow