The PEM™ SCBR™ spinning clinch bolt with self-retracting feature permanently captivates into sheets as thin as 0.040" (1.02 mm) and is designed to replace loose hardware with a low-cost, spring-loaded captive screw. It has a self-retracting mechanism that keeps the screw retracted when disengaged, allows for close centerline-to-edge installation, and is shipped with a mating spring. 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. The part is for use in sheet hardness of HRB 80 or less or HB 150 or less. It has an M3 x 0.5 thread (with equivalent in Unified thread size: #8-32), and is installed using a #2 driver. Minimum hole size is 0.175" (4.5 mm) and minimum distance to edge is 0.205" (5.4 mm).
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-832-8-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 | 0.1640 inch (4.17 mm) |
| Unified Thread Notation | Unified |
| Panel Thickness | 0.0400 inch (1.02 mm) |
| Hole Size | 0.1640 inch (4.17 mm) |
