Small Format Interchangeable Core (SFIC): Figure-8 6-Pin & 7-Pin Modular System
Engineering Overview: Technical guide on Small Format Interchangeable Cores (SFIC) in 6-pin and 7-pin figure-8 formats, detailing rapid core swaps via control keys.
Technical & Engineering Specifications
| Format | Small Format Interchangeable Core (SFIC) |
|---|---|
| Standard | ANSI/BHMA A156.5 Grade 1 |
| Core Sizing | Standard Figure-8 Industry Envelope |
| Rekeying Method | 1-Second Swap via Control Key |
| Chamber Capacity | 6-Pin or 7-Pin Arrays |
Figure-8 Modular Architecture
Small Format Interchangeable Cores (SFIC) utilize a standardized figure-8 brass profile, enabling instant lock rekeying without disassembling door hardware.
Dual-Shear Operation
- Operating Key: Aligns bottom and master pins to rotate the plug and throw the deadbolt.
- Control Key: Aligns dedicated control shear lines at the core perimeter, rotating the locking lug to slide the entire core out in seconds.
- Capacities: Manufactured in standardized 6-pin and 7-pin depths across A2, A3, and A4 keying systems.
Frequently Asked Engineering & Selection Questions
Q1: What is an SFIC lock core?
A standardized figure-8 lock core that can be removed and replaced in seconds using a specialized control key without taking apart the door lockset.