PK No.4 MK Discs 500

Upgrade your master keying system with the PK No.4 MK Discs – Pack of 500, the ideal solution for locksmiths, property managers, and access control professionals managing multi-level security systems. These Master Key (MK) discs are designed for integration into standard pin tumbler cylinders, allowing multiple keys to operate a single lock—perfect for apartment complexes, office buildings, or institutional facilities.

Crafted from durable, corrosion-resistant material, each disc is precision-engineered to fit seamlessly into existing lock configurations. The No.4 MK Discs help create flexible keying hierarchies without compromising on reliability or performance. Whether you’re building a new master keyed system or maintaining an existing one, these discs ensure consistent alignment and long-term functionality.

With 500 discs per pack, this bulk offering is ideal for large-scale projects, high-volume rekeying operations, or locksmith shops looking to maintain a dependable inventory. The PK No.4 MK Discs are compatible with a wide range of pin tumbler cylinders and offer the accuracy required for high-security installations.

Key Features:

• Bulk Pack of 500 Discs: Ideal for master keying and high-volume rekeying tasks

• Size No.4 MK Discs: Engineered for precision fit in standard pin tumbler cylinders

• Durable Construction: Built from corrosion-resistant material for long-lasting performance

• Smooth Integration: Supports multi-level key access without compromising lock function

• Master Key Ready: Perfect for residential complexes, commercial buildings, and institutions

• Professional Grade: Trusted by locksmiths for consistent and reliable use

• Time-Saving Design: Makes system expansion and lock maintenance more efficient

Brand

Yale