FHLS™ flush, low-displacement head studs install permanently in aluminum or steel sheets as thin as 0.040" (1 mm) and allow closer placement to sheet edges than FH/FHS studs without bulging. The FHLS variant is recommended for materials with a Rockwell B hardness of 70 or less and Brinell hardness of 125 or less. The part number FHLS-440-8 corresponds to a #4-40 thread size with a 0.112" thread length and minimum clearance hole of 0.111".
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.
FHL (flush low-displacement head) Studs install closer to the edge of a sheet than PEM Types FH/FHS studs without causing that edge to bulge.
| PennEngineering® | bisco industries | |
|---|---|---|
| Product Category | Studs | Studs |
| Product Number | FHLS-440-8 | FHLS-440-8 |
| Product Name | Low-Displacement Head Studs - Types FHL, FHLS - Unified | Threaded Rods and Studs |
| Attachment | Pressed | Threaded |
| Shape | Round | |
| Design Units | English | English |
| Inch | # 4 | # 4 |
