About this item
The Precision S459 is an optional rim strike for non-fire-rated rim exit devices installed on pairs of doors without a mullion. If you've been searching "s459" or "rim strike" looking for this specific Precision Hardware accessory -this is it. The S459 is not a frame-mounted strike. It's the rim-mounted strike that mounts on the edge of the inactive leaf (the door that doesn't move) so the active leaf's rim latch can engage it when the door closes. Without this strike on a pair of doors without a mullion, the rim device has nothing to latch into when the active door closes against the inactive leaf.
Why You Need a Rim Strike on a Pair Without Mullion
On a single door, a rim device latches into a strike that's mounted on the door frame or head. On a pair of doors with a mullion, the active leaf latches into the mullion itself. But on a pair of doors without any mullion -often called a pair of doors with a flush bolt or coordinate bolt setup -there's no frame element in the center where the latch can engage. The inactive leaf is there, and the S459 attaches to the edge of that inactive leaf so the active door's rim latchbolt has a surface to catch when the door closes.
This is the configuration most commonly missed during hardware specification. A pair of doors without a mullion requires the S459 strike to be specified alongside the exit device. If it's left off the hardware schedule, the device has no strike to engage against the second door.
Compatible Devices
The S459 is compatible with the following Precision device combinations on non-fire-rated pairs of doors without a mullion:
2100 series rim device with 2200 series surface vertical rod device. 5100 series rim device with 5200 series surface vertical rod device. 100 series rim device with 200 series surface vertical rod device. In each case, the rim device is on the active leaf and the vertical rod device is on the inactive leaf. The S459 is the strike for the rim latchbolt on the active door to engage the inactive leaf edge.
Non-Fire-Rated: What That Designation Means
The S459 is not listed for fire-rated applications. A fire-rated pair of doors has specific UL requirements for how the door components interact at the door edge, and a standard rim strike does not meet those requirements. If your opening is fire-rated, you need a different strike configuration or a different device type. The S459 is the correct choice for non-fire-rated pairs only. Always confirm the fire rating of your opening with the AHJ before specifying.
S459 vs S460: Knowing Which Strike You Need
Precision makes two key strikes in this accessory line. The S459 is the rim strike -it's the strike for the rim latchbolt on the top portion of the active door. The S460 is the bottom strike for the vertical rod device -it's the floor-mounted strike that receives the bottom rod of the vertical rod device on the inactive leaf. On a rim x vertical rod pair without a mullion, a complete installation typically requires both: S459 for the rim latch at the top and S460 for the vertical rod at the bottom. Confirm your device configuration and which strikes are included standard before ordering.
Material and Construction
The S459 is black powder coated investment cast stainless steel. Investment casting provides tighter dimensional tolerances than die casting, which matters for rim strike alignment where the latch engagement depth has to be precise. The black powder coat matches the standard finish of the Precision Apex 2000 series devices and trim.
Specifications
Model: Precision S459
Also Known As: PHI S459
Type: Rim strike, optional accessory
Function: Strike for rim device latchbolt on pair of doors without mullion
Fire Rating: Non-fire-rated only
Compatible Device Combinations: 2100 x 2200, 5100 x 5200, 100 x 200 (rim x vertical rod, non-fire)
Dimensions: 2" wide x 2-3/8" tall x 5/8" thick
Material: Investment cast stainless steel, black powder coated
Related Strike: S460 (bottom vertical rod strike -sold separately)
Brand: PHI Precision Hardware (dormakaba)
American Locksets has stocked Precision Hardware exit device accessories since 2001.