HFHB-0420-24X is a heavy-duty BUSBAR® self-clinching stud designed for superior electrical and mechanical attachment in copper sheets. It features a 1/4-20 thread, a 0.380 inch stud length, and a minimum sheet thickness of 0.060 inch. The stud head projects above the sheet surface to distribute axial load and improve pull-through resistance. It is manufactured from phosphor bronze and recommended for use in copper sheets with a Rockwell B hardness of 55 or less and a Brinell hardness of 83 or less. Tensile strength is rated at 60 ksi (415 MPa). Electrical resistance between the stud and copper busbars is below 62 µohms for this size after thermal and mechanical cycling.
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.
HFH (heavy-duty) Studs replace weld studs with easier installation at lower costs. The large stud head which projects above the sheet material distributes the axial tightening force over a large area thereby improving pull through resistance .
HFHB (heavy-duty BUSBAR®) Studs are ideal for applications which demand superior electrical/mechanica
| PennEngineering® | bisco industries | |
|---|---|---|
| Product Category | Studs | Studs |
| Product Number | HFHB-0420-24X | HFHB-0420-24X |
| Product Name | High-Strength Studs - Type HFH/HFHS/HFHB - Unified | Self-Clinching Studs |
| Attachment | Pressed | Threaded |
| Shape | Round | |
| Design Units | English | English |
| Inch | # 4; 1/4" | 1/4" |
