Kwikset 84221-001 Thick Door Screw Pack Deadbolt

Product Description

The KWIKSET 84221-001 is a thick door screw pack designed for use with double cylinder deadbolt installations on oversized or thick door assemblies. Standard deadbolt hardware is sized for doors within a typical thickness range, and when door thickness exceeds that range, longer fasteners are required to achieve a secure mechanical connection between the interior and exterior assemblies. This screw pack provides the correct fastener length to span the additional door thickness, ensuring the deadbolt components clamp together properly. It is installed by locksmiths, general contractors, and door hardware technicians as part of a deadbolt retrofit or new installation on non-standard door stock.

This screw pack is intended for residential door hardware applications where the door thickness requires extended fasteners beyond what is included in a standard deadbolt kit. Typical use cases include solid-core exterior doors, doors with added weatherstripping or door armor, and custom millwork doors that exceed standard thickness. The pack is sold as a single unit and is a direct accessory component for compatible KWIKSET double cylinder deadbolt models.

Key Features

• Extended-length screws sized for thick door installations
• Designed specifically for double cylinder deadbolt configurations
• Replaces or supplements standard fasteners included with deadbolt kits
• Compact dimensions allow easy stocking as a service part
• Sold individually as a single unit pack

Compatibility

Designed as an OEM-style accessory screw pack for KWIKSET double cylinder deadbolts requiring thick door fasteners. Refer to your specific deadbolt model documentation to confirm fastener compatibility before installation.

Installation Notes

Installation should be performed by a qualified locksmith or experienced door hardware technician. Before beginning, ensure the door is in its closed position and remove any existing deadbolt hardware per the manufacturer instructions. Use the appropriate screwdriver bit to avoid fastener head damage, and do not overtighten, as excessive torque can crack the interior rose or misalign the cylinder. Verify door thickness measurements before selecting the appropriate screw pack length.