The SCBR™ spinning clinch bolt with self-retracting feature permanently captivates into sheets as thin as 1.02 mm and is designed to replace loose hardware with a low-cost, spring-loaded solution that retracts when disengaged. It installs with a Phillips driver and is suited for close centerline-to-edge applications. The screw is made of hardened carbon steel with a zinc plating per ASTM B633, SC1 (5µm), Type III, and the spring is 300 series stainless steel. It is available for M4 x 0.5 threads with a minimum hole size of 4 mm, minimum distance to edge of 5.4 mm, and operates in sheet hardness up to HRB 80 or HB 150. The screw engages with clear axial travel and remains captive after installation.
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-M4-12-ZI-2 |
| Product Name | Captive Panel Screw-Tool only, Spinning Clinch Bolt, Self-retracting Spring - Metric |
| Captive Fastener Class / Type | Captive Screws |
| Metric Thread Notation | Metric |
| Hole Size | 0.1575 inch (4 mm) |
| Material | Hardened Steel |
