HFHB-0518-20X is a heavy-duty BUSBAR® self-clinching stud designed for superior electrical and mechanical attachment in copper sheets. It has a 5/16-18 thread, a 0.075 inch minimum sheet thickness requirement, and a tensile strength of 60 ksi (415 MPa). The stud head projects above the sheet surface to distribute tightening force and improve pull-through resistance. The phosphor bronze material provides low electrical resistance, with tested values below 62 µΩ for this thread size after thermal and mechanical cycling. Installation requires a properly sized hole with a centerline distance of 0.374 inches from the edge for the minimum sheet thickness.
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-0518-20X | HFHB-0518-20X |
| Product Name | High-Strength Studs - Type HFH/HFHS/HFHB - Unified | Self-Clinching Studs |
| Attachment | Pressed | Threaded |
| Shape | Round | |
| Design Units | English | English |
| Inch | # 5; 5/16" | 5/16" |
