The Falcon 021164-016 is the OEM ANSI Strike Screw, number 12-24 x 1 inch with a combination drive head, documented in the Falcon T Series Parts Manual under the Strikes and Dust Boxes section. It is the fastener that secures the ANSI standard strike plate to the door frame in Falcon T Series Grade 1 cylindrical lock installations. Confirmed under category Lock Strikes ANSI/ASA by Allegion authorized distributors. Finish must be specified. Sold individually. In stock.

Why the 021164-016 Uses a Number 12 Screw for ANSI Strike Installation

ANSI strike plate screws are specified at a larger diameter than standard wood or sheet metal screws for a specific structural reason: resistance to forced entry kick-in attacks. The ANSI A156.2 Grade 1 standard, which the Falcon T Series is certified to meet, requires the strike assembly to maintain integrity under forced entry testing. The fastener that holds the strike plate to the frame is a critical part of this assembly.

A number 12 machine screw has a nominal diameter of 0.216 inch, significantly larger than the number 8 screws (0.164 inch) used for standard trim mounting on the T Series and larger than the number 10 screws (0.190 inch) used in intermediate fastener positions. The larger diameter provides proportionally greater pull-out resistance from the frame material and greater shear strength when the strike is tested against lateral forced entry force. Using a smaller replacement screw, even temporarily during a service call, compromises the strike assembly's force resistance and the lock's Grade 1 certification at that door.

The 24 threads per inch designation is the UNC (Unified National Coarse) specification for a number 12 screw. The coarser thread provides better grip in metal frame materials, including steel hollow metal frames and aluminum frames, compared to finer thread pitches that are designed for precision metal-to-metal fastening in softer materials.

Falcon 021164-016: Combination Drive Explained

The "Combo" in the product name identifies the combination drive head, which has both a flat blade slot and a Phillips cross recess machined into the same screw head. This dual-drive specification is standard practice in commercial door hardware fasteners for two practical reasons.

First, field accessibility: a commercial installer working on an ANSI strike installation may have either a flat blade or a Phillips driver immediately available. The combo head accepts both, eliminating the need to search for a specific driver type during an installation or service call. Second, torque control: a flat blade driver, when used in a slot drive, allows more precise torque application for final seating of the screw head into the countersunk hole in the strike face plate. The screw head must sit flush with or slightly below the strike face surface to allow the strike plate to sit fully flush against the door frame without any protrusion that could affect strike plate alignment or latch bolt engagement.

Falcon ANSI Strike Screw: T Series Application and Finish Matching

The 021164-016 is the field replacement or additional quantity screw for use when installing the Falcon ANSI standard strike plates covered in the T Series Parts Manual. The ANSI strike plates in the T Series catalog use two screw positions per strike plate, with both screws visible in countersunk holes in the strike face. Because the screw head is visible, the finish of the 021164-016 must match the installed strike plate finish to present a consistent appearance.

Finishes confirmed available for the 021164-016 include 606 (Satin Brass) and 626 (Satin Chrome). Additional finishes matching the full T Series strike range may be available. The finish suffix is appended directly to the base part number when ordering: 021164-016 followed by the finish code. The 1 inch screw length is the standard for ANSI strike installation on hollow metal frames of standard construction. Deeper frame materials or through-frame anchoring applications may require a longer screw purchased separately.

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