Blind-threaded self-clinching standoffs of the BSO series install permanently into metal sheets using a press-fit method, providing flush, closed-end mounting surfaces. They are designed for use in steel or aluminum sheets with hardness up to HRB 80 / HB 150 and feature a threaded bore for mating components. The series supports metric thread sizes including M4 with a pitch of 0.7 mm and length codes ranging from 3 to 25 mm, with standard part dimensions including a minimum hole size of 4.8 mm and a minimum distance to edge of 7.9 mm. Installation requires proper hole sizing and clinching pressure to ensure permanent bond without sheet deformation.
These standoffs, which use the proven self-clinching design, install with a squeeze in properly sized round holes - and become permanently mounted in the thin sheet.
When blind-threaded types are used, outer sheet surfaces are not only flush, but closed as well.
If you require a standoff which we do not offer in this bulletin, please contact us. We will be happy to work with you to satisfy your special need.
| PennEngineering® | bisco industries | |
|---|---|---|
| Product Category | Posts, Spacers, and Standoffs | Posts, Spacers, and Standoffs |
| Product Number | BSO-M4-25ZI | BSO-M4-25ZI |
| Product Name | Blind Threaded Standoffs - Types BSO, BSOA, BSOS - Metric | Steel Standoffs |
| Type & Shape | Standoff; Round | Standoff |
| Mounting | Self-Clinching | |
| Material | Steel | Metal; Steel; STEEL |
