Baldwin Estate 5399A New Mechanics Thick Door Kit A For Single Cylinder Handlesets

The 5399A kit adapts a Baldwin Estate single cylinder handleset to doors measuring 2 inches to 2-1/2 inches. Standard handleset hardware is built around a 1-3/4 inch door, so anything above that on a heavy entry door needs the longer spindles and screws this kit supplies. If your door is under 2 inches, this is not the kit you need.

No. Kit A is the single cylinder version. Baldwin splits the thick door kits by handleset function, and the emergency egress handlesets take the 5399C kit instead. Check which function is on the door before ordering, because the wrong kit leaves you with a spindle that won't drive the latch.

It's an Estate Series part. The kit matches the Estate single cylinder handlesets and their finish codes; Baldwin's other lines use their own thick door hardware. If the handleset on the door is an Estate model and the door falls between 2 and 2-1/2 inches, this is the correct kit.

You need the kit. On a door over standard thickness, the handleset spindle and the cylinder tailpiece both come up short, not just the fasteners. The 5399A supplies the thick door components for single cylinder Estate handlesets in the 2 to 2-1/2 inch range. Substituting longer screws alone leaves the latch driven by a spindle with too little engagement.

Brass and steel construction. The steel elements carry the mechanical load in the longer spindle and mounting run needed on a 2 to 2-1/2 inch door, which is the thickness range typical of custom solid wood and speakeasy entry doors.

It's a residential product. For apartment or multi-family unit entry doors it is fine where the Estate handleset is already specified, but for a commercial opening with grade requirements you'd be specifying a commercial lockset rather than a residential handleset and its thick door kit.