LAB SCS-100 Curved Metal Shims (Pack of 100) - Precision Rekeying & Lock Opening Solution 

The LAB SCS-100 Metal Shims are an essential high-precision locksmithing tool designed for non-destructive cylinder disassembly and emergency bypass. Specifically engineered for situations where the original key is unknown or lost, these curved stainless steel shims allow a technician to create a temporary shear line between the plug and the housing. By carefully sliding the shim into the rear of the cylinder while manipulating the pins, the user can "trap" each pin at the shear line, enabling the cylinder to be rotated and extracted for rekeying without the need for destructive drilling.

Constructed from specialized ultra-thin spring steel, the SCS-100 provides the necessary flexibility to navigate the tight tolerances of Grade 1 and Grade 2 commercial cylinders. This pack of 100 ensures that facility maintenance teams and security professionals always have a fresh, straight shim available, as these components are designed for high-precision work where a bent or burred edge can hinder the bypass process. Whether you are managing a large-scale tenant turnover or recovering access to a locked storage room, these shims are the industry-standard maintenance solution for non-destructive entry.

Mechanical Bypass & Shimming Function Summary

The Cylinder Shimming technique is a specialized mechanical process used to overcome the absence of a working key while preserving the integrity of the door hardware:

• Shear Line Creation: The shim is inserted into the gap between the cylinder plug and the shell. As each pin is lifted individually with a pick or a blank, the shim is pushed forward to hold the driver pin in the "up" position.
• Non-Destructive Access: Unlike drilling, shimming allows the Sargent, Schlage, or Yale cylinder to be reused immediately after a new key is cut, providing a significant cost-saving solution for facility managers.
• Plug Extraction Support: Once all pins are shimmed, the plug can be rotated. This allows for the use of a Follower to remove the plug and identify the internal pinning for key origination.
• Precision Thickness: The LAB SCS-100 is manufactured to a specific gauge that is thin enough to enter the cylinder bypass but rigid enough to depress the pin springs without buckling.

Technical Specifications

Engineered Solutions for Security Professionals

The LAB SCS-100 addresses critical operational challenges in commercial and institutional lock management:

• Avoid Expensive Hardware Replacement: When a key is lost for a high-end mortise cylinder, the cost of replacement can be hundreds of dollars. The SCS-100 shim is the primary recovery solution, allowing the lock to be salvaged and re-pinned in minutes.
• Rapid Tenant Turnover: In multi-family housing or commercial suites, keys are frequently not returned. Shimming provides a speed-of-service solution, allowing maintenance staff to quickly open and rekey cylinders on-site without waiting for a locksmith to drill and replace the lockset.
• Improved Field Efficiency: Traditional picking can be time-consuming depending on the security level of the pins. Shimming provides a more consistent bypass solution for conventional cylinders by physically "locking" the pins at the shear line one by one.
• Minimal Tool Footprint: These ultra-thin shims are easily stored in a standard pinning kit or pocket tool roll, ensuring that a field-ready solution is always available for unexpected lockouts.
• Professional Standards Compliance: Using the correct LAB Security shimming tools ensures that the internal brass components of the cylinder are not scarred or damaged during the opening process, maintaining the hardware’s ANSI/BHMA Grade performance rating.