Best B56165 7 Pin Throw Member Tailpiece

Product Description

The BEST B56165 is a 7-pin throw member tailpiece designed for use in BEST interchangeable core lock cylinders. The tailpiece serves as the mechanical link between the rotating core plug and the locking mechanism, transmitting the turning motion needed to retract or extend the bolt or latch. This small but critical component is commonly replaced during lock rekeying, core servicing, or when wear causes sluggish or failed bolt throw. Installation is performed by licensed locksmiths, access control technicians, and facilities maintenance professionals working with BEST mortise, cylindrical, or rim-style hardware.

This tailpiece is a single-unit replacement part suited for service work on commercial door hardware that uses BEST 7-pin interchangeable core systems. It is appropriate for interior and exterior door applications in institutional, commercial, and government facilities where BEST cylinders are already installed. Replacement of worn or damaged tailpieces restores reliable bolt actuation without requiring full hardware replacement. Order quantity is one piece per unit.

Key Features

• 7-pin configuration compatible with BEST interchangeable core cylinder systems
• Functions as the mechanical link between the plug rotation and bolt throw
• Single-piece replacement unit for targeted service without full hardware swap
• Compact form factor suited for tight cylinder housings
• Supports masterkey system integrity when replaced as part of scheduled core service

Compatibility

Designed as an OEM-style replacement tailpiece for BEST 7-pin interchangeable core lock cylinders used in commercial door hardware applications.

Installation Notes

Installation and replacement of lock cylinder tailpieces should be performed by a qualified locksmith or access control technician familiar with BEST interchangeable core systems. Remove the core from the hardware before servicing the tailpiece. Follow the door hardware manufacturer's disassembly procedure to avoid damaging the cylinder housing or adjacent components. Verify correct pin count and tailpiece geometry before reinstalling the core.