Don-Jo 1555 Flush Bolts - Metal Doors

The Don-Jo 1555 is a cast brass flush bolt for hollow metal doors, designed to fit standard ANSI door and frame preparations. If you've been searching "glynn-johnson flush bolt" looking for a metal door flush bolt the Don-Jo 1555 is a direct alternative. Both mount into the same ANSI standard door prep (ANSI L14251), both use the same 12-inch rod, and both are UL listed for commercial applications. The Don-Jo 1555 is widely stocked by distributors and provides the same code-compliant flush bolt function at a competitive price point.

What a Flush Bolt Does and When You Need One

A flush bolt is the hardware that locks the inactive leaf of a double door pair to the frame. On a pair of doors, one leaf is the active door that opens and closes with a handle or lockset. The other leaf is the inactive leaf it stays stationary and only opens when needed for large clearances. The flush bolt is what keeps the inactive leaf secure. When you engage it, a bolt extends into the frame header (top) or into the floor (bottom), locking the inactive leaf in place.

The 1555 is a surface-type flush bolt with a manual lever operation. Slide the lever up and the bolt extends into the strike. Slide it down and the bolt retracts. It doesn't require a key. It's purely mechanical and designed for the inside face of the door.

Specifications Explained

The face plate is 1 inch wide by 6-3/4 inches tall. That's the flush plate visible on the door face when installed. The strike is 15/16 inch by 2-1/4 inch and mortises into the frame. The guide the bracket that holds the rod in alignment on the door face is 1 inch by 2 inches.

The bolt itself throws 3/4 inch with a 3/4-inch rod backset. The adjustable bolt head is 1/2 inch, which allows for minor field adjustments if the rod length needs fine-tuning. The rod is 12 inches standard. For most standard commercial hollow metal door installations, that rod length handles both the door-to-frame distance and the required travel into the strike without cutting.

ANSI Compliance and UL Listing

The Don-Jo 1555 is ANSI L14251 compliant, which means it fits the standard flush bolt door and frame preparation used across commercial hollow metal door manufacturers. If your doors are specified or already prepped for a flush bolt to ANSI standard, the 1555 fits. UL listing is confirmed, so it's acceptable for fire door assemblies where a UL listed flush bolt is required.

Pack Quantity and Fasteners

The 1555 ships in packs of 10. If you're searching "1555 x 3" or "1555 x 2" for multiple packs, contact American Locksets for bulk quantity pricing on the case. Each unit includes 4 combination screws at #8 x 1-1/2 inch for the face plate and guide, and 4 combination screws at #8 x 3/4 inch for the strike everything needed for installation.

Available Finishes

The 1555 is available in several architectural finishes: 626 Satin Chrome, polished brass, satin bronze, polished chrome, and oil rubbed bronze. Specify your finish when ordering to match existing hardware on the project.

Specifications

Model: Don-Jo 1555

Type: Flush bolt, manual lever, surface applied

Material: Cast brass

Face Plate: 1" x 6-3/4"

Strike: 15/16" x 2-1/4"

Guide: 1" x 2"

Bolt Throw: 3/4"

Rod Backset: 3/4"

Rod Length: 12"

Bolt Head: 1/2" adjustable

Door Application: Metal/hollow metal doors

ANSI: L14251

UL Listed: Yes

Fasteners: 4 ea. #8 x 1-1/2" combo screw, 4 ea. #8 x 3/4" combo screw

Pack Quantity: 10 per pack

Finishes: 626 Satin Chrome, polished brass, satin bronze, polished chrome, oil rubbed bronze

Warranty: Limited 1-year

American Locksets has stocked Don-Jo flush bolts since 2001.