Deltana 6FBR 6" Flush Bolt, Heavy-Duty, Round, Solid Brass

A manual bolt like the Deltana 6FBR is thrown by hand at the door edge, so the inactive leaf stays put until someone deliberately opens it. That suits a leaf that only gets opened for moving furniture or deliveries. An automatic bolt retracts on its own when the active leaf opens, which is what you want when the inactive leaf sees regular traffic or when an egress requirement means nobody should have to reach for a bolt. Automatic options include the Ives FB41 set for wood doors and the ABH 1860P/1862P pair. If you want the leaf locked and keyed rather than hand-thrown, the Adams Rite 1877 is a cylinder-operated flushbolt for paired wood doors.

The 6FBR is a solid brass manual flush bolt sized at 6 inches, the profile normally mortised into a wood door edge. For hollow metal leaves, the ABH 1855S manual flush bolt single for metal doors has a 3/4 inch throw, the ABH 1854 series is a manual flush bolt set for metal doors, and the Ives FB457 is a manual flush bolt with a 12 inch rod length for metal doors. The metal-door bolts use a longer rod assembly through the door channel rather than the short mortised body the brass bolt uses.

The Deltana 6FBR has round corners, so it will not drop into a mortise cut square. For a square end in the same material and length, the Delaney 4108 is a 6-inch square end solid brass flush bolt. The Trimco 3999SE is also a 6-inch corner-mount square end flushbolt. Match the end profile to the existing mortise cut in the door edge, since a round-corner bolt and a square-corner bolt of the same length are not interchangeable in an already-routed opening.

The 6FBR is a manual heavy-duty flush bolt and Deltana does not carry a fire rating on it. For a labeled pair, use a bolt that carries the rating: the Ives FB41 automatic flush bolt set for wood doors is rated 90 minutes, the Ives FB42 top automatic flush bolt for wood doors comes with an auxiliary fire latch, and the ABH 1860P/1862P automatic flush bolt pair is fire rated 3-hour with a thermal lock. For metal doors, the ABH 1854 series manual flush bolt set includes a fire bolt, and the ABH 1858 is a universal bottom fire bolt. Fire pairs typically also require the auxiliary top latch, which the manual brass bolts do not provide.

The 6FBR is operated by hand - you throw and retract the bolt at the door edge yourself, with a 1 inch throw. An automatic flush bolt retracts on its own when the active leaf opens and projects when it closes, so the inactive leaf releases without anyone reaching for the bolt. The Ives FB41 is an automatic flush bolt set for wood doors with a 3/4 inch throw, and the ABH 1860P/1862P is an automatic flush bolt pair. Choose manual when the inactive leaf stays fixed most of the time, and automatic when staff need both leaves open regularly without training on the hardware.

The 6FBR is thrown and retracted by hand at the door edge, so anyone with access to the leaf can release it. When the inactive leaf has to be under key control, the Adams Rite 1870 series is a cylinder-operated flushbolt with key control, and the Adams Rite 1877 is a cylinder-operated flushbolt for paired wood doors. Both take a cylinder so the bolt only moves for a keyholder, which is the usual answer in tenant spaces and storefronts where the second leaf must stay secured.

Nine, and they cover most of what you would be matching on a door: Polished Brass, PVD Polished Brass, Antique Brass, Polished Chrome, Brushed Chrome, Brushed Nickel, Antique Nickel, Oil Rubbed Bronze, and Paint Black. If you are standardizing a building, the PVD polished brass is the one to note, since PVD is the plated version that holds its shine where straight polished brass will patina.

Normally yes. The 6FBR is sold each, so a pair of doors secured top and bottom takes two of them, both in the inactive leaf. Some jobs run a top bolt only, where the head frame does the work and the floor has no strike. Order the same finish for both so the door edge matches.

Not the Deltana 6FBR. It is a manual bolt you slide by hand at the edge of the inactive leaf, so you have to open the active leaf to reach it. For key control over the inactive leaf, the Adams Rite 1870 Series is a cylinder-operated flushbolt and the 1877 is the cylinder-operated version for paired wood doors. The Adams Rite MS1880/MS1881 gives you a two-point flushbolt with an interlock mechanism if you need top and bottom moving together.

The Deltana 6FBR is a single bolt, so a pair of doors secured top and bottom takes two of them. If you would rather run one mechanism that engages both points, the Adams Rite MS1880/MS1881 are two-point flushbolts with an interlock mechanism, and the Adams Rite MS2180 series is an auto-release two-point flushbolt with a Smartlock mechanism. The ABH 1854 series and the Ives FB41 are also sold as sets rather than singles, as is the ABH 1860P/1862P pair.

The Deltana 6FBR is a 6 inch flush bolt with a 1 inch throw. When the mortise or the header clearance calls for more length, the Delaney 4101 is a 7 inch slide type mortise-in flush bolt and the Delaney 4363 is a 7 inch mortise extension flush bolt. For a much longer reach on metal doors, the Ives FB457 carries a 12 inch rod length. Measure from the bolt body to the strike before choosing, since the extra length lives in the rod, not in the throw.

The Deltana 6FBR throws 1 inch. Among the other manual bolts, the ABH 1855S single for metal doors and the Ives FB358 both throw 3/4 inch, and the International Door Closers FB-1202 throws 5/8 inch with a 1/8 inch offset and a 7/8 inch backset. Throw matters when the strike is set deep in the head or the threshold, or when the floor has settled and the bolt needs to reach further into the strike than the original hardware did.

The Deltana 6FBR is solid brass and comes in Oil Rubbed Bronze, Brushed Nickel, Antique Nickel, Paint Black, Polished Chrome, Brushed Chrome, Polished Brass, Antique Brass, and PVD Polished Brass, which is why it is the usual pick when the bolt has to sit next to visible decorative trim. Emtek also offers flush bolts, and the Delaney 4108 is a 6 inch square end solid brass flush bolt for the same kind of finished application. The ABH, Ives, and Adams Rite bolts are the utility side of the category and are specified for function first.

Watch for the metal-door bolts. The ABH 1855S manual flush bolt single is built for metal doors, the ABH 1854 series set is for metal doors, and the Ives FB457 with its 12 inch rod is for metal doors - all of them read as manual flush bolts like the 6FBR but are prepped for a hollow metal channel, not a mortise in a wood edge. The Adams Rite 1877 cylinder-operated flushbolt and the Ives FB41 automatic set are the wood-door builds in the group, though the 1877 adds a cylinder and the FB41 operates automatically rather than by hand.

Solid brass throughout and designated heavy-duty, and the product data classes it commercial. Brass is the point here: it does not corrode the way plated steel does at a threshold where water tracks in, and it takes the polished and PVD finishes without flaking. For an apartment or office pair that gets opened a few times a week, it holds up.

Close, but confirm the mortise before ordering. Both are 6 inch flush bolts with rounded corner ends - the Deltana 6FBR is round with a 1 inch throw in solid brass, and the Orca 6 inch flush bolt has radius corners. The Deltana is the one carried across a full decorative finish range including Oil Rubbed Bronze and PVD Polished Brass, so on an opening where the bolt is visible alongside matching trim they are not equivalent even where the cutout is.