Infastech has introduced a new thread-forming fastener for thermoplastic materials: Aptino^® (Advanced plastic threadform innovation) is the latest new product from Infastech’s iForm™ brand. 

 The steep pitch of Aptino^® trailing flank is designed to reduce radial thread-forming stress in thermoplastic molded bosses / nut member applications. The Aptino^® thread profile enhances resistance to pull-out and vibration loosening forces associated with typical field use.

 The Aptino^® thread-form delivers a narrow tip asymmetric profile which efficiently displaces material and therefore requires minimal drive-torque to form an internal thread. The steep trailing flank minimizes plastic deformation resulting in high resistance to internal thread strip out. The Aptino^® thread root is designed specifically to minimize radial stress resulting in an optimum fastening solution where restrictive size and maximum strength is critical. Reduced radial stress enables a reduction of boss wall thicknesses and thermoplastic material usage and further lowers manufacturing cost. 

 Aptino^® fasteners can be manufactured in thread sizes from 1.0 to 6.0 mm, in a wide range of materials and surface finishes along with various head styles and drive systems.

The plastic boss with Aptino^® fastener (left) compared to
standard fastener (right) shows reduced radial stress and also
permits a reduction of host material and boss dimensions.

  The steep trailing thread flank of Aptino^® fasteners is designed
to reduce radial thread forming stress and minimize plastic
deformation resulting in high resistance to pull-out load. 

Aptino® Thread-forming Fastener 202.83 kB