The SCBR™ spinning clinch bolt with self-retracting feature is a tool-only captive panel screw designed to permanently attach to sheets as thin as 0.040 in (1.02 mm). It installs by pressing into a properly sized hole, allowing the screw to spin freely while remaining captive. The assembly includes a spring that retracts the screw when disengaged. The screw is made of hardened carbon steel with a zinc plating per ASTM B633, SC1 (5µm), Type III, colorless, and the spring is 300 series stainless steel. It supports M3 and M4 metric and #4-40, #6-32, and #8-32 UNC thread sizes with minimum hole sizes and edge distances specified per thread size. The screw head requires a #1 or #2 Phillips driver. All SCBR screws are shipped with mating springs.
PEM Type SCBR™ Spinning Clinch Bolt installs by simply pressing it into a properly sized hole. The controlled clinching action permanently captivates the screw and spring in the panel and allows the screw to spin freely in the sheet.
Features and Benefits
Type SCBR screws are shipped with mating springs.
| PennEngineering® | |
|---|---|
| Product Category | Captive Fasteners |
| Product Number | SCBR-440-8-ZI-2 |
| Product Name | Captive Panel Screw-Tool only, Spinning Clinch Bolt, Self-retracting Spring - Unified |
| Captive Fastener Class / Type | Captive Screws |
| Decimal Thread Diameter | 0.1120 inch (2.84 mm) |
| Unified Thread Notation | Unified |
| Panel Thickness | 0.0400 inch (1.02 mm) |
| Hole Size | 0.1120 inch (2.84 mm) |
