The SCBR™ spinning clinch bolt with self-retracting feature permanently captivates into sheets as thin as 0.040 in (1.02 mm) and includes a spring to retract the screw when disengaged. It has a #4-40 thread size, a screw length code of 440, a zinc-plated finish per ASTM B633, SC1 (5 µm), Type III, and is designed for use in sheet hardness of HRB 80 or less or HB 150 or less. Installation requires a minimum hole size of 0.112 in and a minimum distance to edge of 0.175 in. The screw is driven with a #1 Phillips driver. Mating springs are included. The part is tool-only and non-flush.
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 |
| 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) |
