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Yale 4600LN cylindrical classroom lock with lever handle, satin finish

Yale

Yale 4600LN Cylindrical Classroom Door Lock

SKU CH-QZ3B-S52BS

Grade 1 and 2 cylindrical classroom lock with free-wheeling lever, ANSI/BHMA 156.2 series 4000 certified, ADA compliant, UL listed for three-hour fire doors

  • Grade 1 & 2 security with ANSI/BHMA 156.2 series 4000 certification
  • Non-handed, field-reversible design simplifies installation on any door orientation
  • Free-wheeling levers rotate when locked to resist forced entry attempts
  • ADA compliant meeting ANSI 117.1 and federal accessibility standards
  • UL listed for 3-hour fire door assemblies ensuring life-safety compliance

Classroom Cylindrical Lock

The Yale 4600LN is a cylindrical lockset designed for classroom security applications. It is built to ANSI/HGMA A156.2 series 4000 certification and meets ANSI 117.1 federal accessibility standards for commercial and institutional use.

Non-Handed Reversible Lever

The lock features a free-wheeling lever that rotates when locked, preventing damage from forced entry attempts. Its non-handed design allows for field-reversible installation on both metal and wood doors, fitting ANSI/BHMA 156.115 and 156.115-W frame preparations.

Fire-Rated Door Hardware

This lock is UL Listed for three-hour fire doors, suiting buildings requiring code-compliant fire protection. It is not suited for residential entry sets, electronic access control systems, or mortise lock preparations.

Highlights

  • Grade 1 & 2 security with ANSI/BHMA 156.2 series 4000 certification
  • Non-handed, field-reversible design simplifies installation on any door orientation
  • Free-wheeling levers rotate when locked to resist forced entry attempts
  • ADA compliant meeting ANSI 117.1 and federal accessibility standards
  • UL listed for 3-hour fire door assemblies ensuring life-safety compliance

Specifications

BrandYale
Series4600LN

Questions about this item

How often should the lever mechanism on this 4600LN lock be lubricated?

The free-wheeling lever design reduces internal wear; apply light PTFE lubricant to the latch bolt and lever pivot once per year for smooth operation.

What component reaches its cycle limit first on a Grade 1 4000 series lock under constant classroom traffic?

The latch bolt assembly is tested to ANSI/BHMA 156.2 Grade 1 requirements, so it is the first part rated for replacement after heavy use.

Does the lock body heat up or draw extra power when the lever stays locked all day?

This is a fully mechanical cylindrical lock with no electronic parts, so it generates no heat and consumes no power during continuous operation.

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