TFHS-256-4 is a non-flush self-clinching stud designed for installation in sheets as thin as 0.020 in / 0.51 mm. The stud head projects above the sheet surface by approximately 0.025 in / 0.64 mm when installed. It is recommended for use in steel or aluminum sheets with a Rockwell B hardness of 70 or less or a Brinell hardness of 125 or less. The threaded portion is sized for #6-32 threads, with a nominal thread length of 0.137 in and a minimum hole size of 0.141 in. The product is made from stainless steel, and the clinching profile conforms to PEM® standards for permanent enhancement of sheet integrity through press installation.
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 .020 inches. 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 .025 in.
| PennEngineering® | bisco industries | |
|---|---|---|
| Product Category | Studs | Studs |
| Product Number | TFHS-256-4 | TFHS-256-4 |
| Product Name | Non-Flush Studs - Types TFH, TFHS - Unified | Threaded Rods and Studs |
| Attachment | Pressed | Threaded |
| Shape | Round | |
| Design Units | English | English |
| Inch | # 2 | # 2 |
