TFHS non-flush studs are designed for installation in sheets as thin as 0.51 mm and project approximately 0.64 mm above the sheet surface. The TFHS variant is recommended for use in steel or aluminum sheets with a Rockwell B hardness of 70 or less and a Brinell hardness of 125 or less. The part TFHS-M4-18 corresponds to the M4 x 0.7 thread size with a length code of 18 mm, and is installed using standard press tools. The stud head features a dimple to identify it as a TFH/TFHS type. Screw function is achieved through mechanical clinching into the parent material with high torque-out and pushout resistance.
PEM® self-clinching studs are installed by placing them in properly sized holes in the sheets and squeezing into place with any standard press. The squeezing action embeds the head of the stud into the sheet. The metal displaced by the head flows smoothly and evenly around the ribs and into the annular groove - creating a flushhead assembly and securely locking the stud into the sheet with high torque-out and pushout resistances.
TFH (non-flush) Studs are for sheets as thin as 0.51mm. They may also be used in thicker sheets where flush head studs are not required. TFH studs are installed in the sheets in the same manner as flush-head studs; however, different punches and anvils are required. When installed, the TFH stud will be securely locked into the thin sheet with ample torque-out and pushout resistances. The stud head will not be flush but will project above the sheet surface approximately 0.64mm.
| PennEngineering® | bisco industries | |
|---|---|---|
| Product Category | Studs | Studs |
| Product Number | TFHS-M4-18 | TFHS-M4-18 |
| Product Name | Non-Flush Studs - Types TFH, TFHS - Metric | Threaded Rods and Studs |
| Attachment | Pressed | Threaded |
| Shape | Round | |
| Design Units | Metric | Metric |
| Metric | M4 | M4; M4 x 0.7 |
