National Marker N151027 Zinc Steel Door Foot Bolt

Product Description

The NATIONAL MARKER N151027 is a zinc-finish steel door foot bolt designed to secure doors at the base by pinning them to the floor. The steel case measures 5 inches by 2 inches and houses a 5/8-inch die-cast bolt with a 6-inch overall bolt length. A lever mechanism raises and lowers the bolt with positive, deliberate action, and an oil-tempered steel friction spring holds the bolt in the raised position when the door needs to remain open. The unit ships complete with a floor plate and mounting screws. Installers in commercial and light industrial settings use this hardware to secure inactive door leafs in paired-door applications.

This foot bolt is suited for use on double doors, barn-style doors, and secondary entry doors where a floor-mounted locking point is required. Typical installations include commercial storefronts, warehouses, and institutional facilities where one door leaf must be held stationary while the active leaf operates. The included floor plate and screws allow for a complete, self-contained installation without sourcing additional hardware.

Key Features

• Steel case measuring 5 inches by 2 inches for durable, rigid mounting
• 5/8-inch die-cast bolt with 6-inch overall bolt length for reliable floor engagement
• Positive-action lever raises and lowers the bolt with consistent feel
• Oil-tempered steel friction spring holds bolt in raised position automatically
• Includes floor plate and mounting screws for complete installation
• Zinc finish for corrosion resistance in interior applications

Compatibility

Designed as a standard-style foot bolt for doors requiring a floor-mounted bolt retention point, compatible with typical door bottom configurations in commercial and light industrial applications.

Installation Notes

Installation is typically performed by a finish carpenter, door hardware installer, or general contractor. Power down any access control systems tied to the door before beginning work. The floor plate must be set into a solid substrate to ensure the bolt seats fully under load. Follow local building codes regarding hardware requirements for egress and fire-rated door assemblies before installing any door bolt.

Technical Specifications

• Case Size: 5 inches x 2 inches
• Bolt Diameter: 5/8 inch
• Bolt Length Overall: 6 inches
• Bolt Material: Die-cast zinc
• Case Material: Steel
• Spring Type: Oil-tempered steel friction spring
• Finish: Zinc
• Weight: 0.806 pounds
• Includes: Floor plate and screws

Standard Information

• Brand: NATIONAL MARKER
• Manufacturer Part Number: N151027