Deltana 6SBCS 6" Solid Brass Surface Bolt, Concealed Screws, HD

That's what a surface bolt is for. The 6SBCS mounts on the face of the door, so on a pair of doors you bolt the inactive leaf to the head or the sill and the active leaf then latches against it. Nothing gets mortised into the door edge and no mullion is needed. It's surface mounted, so it also works on doors you can't machine, like a cabinet door, a French door, or an existing slab you don't want to bore.

The 6SBCS measures 6 inches, which is the plate-and-bolt length, not the throw. On a residential or light commercial door that's a common size for a top or bottom bolt on the inactive leaf of a pair. If you need to reach further up a tall door or across a bigger gap, Deltana builds the concealed screw bolt in other lengths, and the Ives SB360 runs to a 12 inch length.

For a fire rated opening, specify a bolt the manufacturer rates for it. The Ives SB1600 is a heavy duty steel surface bolt with a 3-1/2 inch throw and is fire rated. The Ives SB1630 is heavy duty steel with a 1 inch throw and carries a 3-hour UL listing along with keyed security. If you want brass on a rated opening, the Ives SB1640 is a fire rated brass surface bolt with a 1 inch throw. The Deltana 6SBCS is a solid brass surface bolt built around concealed screws and a contemporary appearance - the right call on a non-rated opening where the look of the hardware is part of the decision.

The Ives SB1630 is the one to look at - a heavy duty steel locking surface bolt with a 1 inch throw and keyed security, carrying a 3-hour UL listing. That keyed function is what separates it from the Deltana 6SBCS, which is a solid brass surface bolt with concealed screws that throws and holds but is operated by hand at the bolt. The ABH HD1805 is another direction: a heavy duty surface bolt with an auto-locking 3/4 inch stainless steel bar, so the bolt secures itself when thrown rather than requiring a key.

The Emtek 8511 is the nearest match: a solid brass surface bolt in the same 6 inch length as the Deltana 6SBCS, which is a 6 inch solid brass surface bolt with concealed screws. Both are brass-bodied surface-mounted bolts for the same kind of inactive leaf or French door application. The Deltana carries the concealed screw treatment, so the fastener heads do not read on the face of the bolt; if that detail does not matter to the opening, the Emtek 8511 covers the same 6 inch brass footprint. Delaney also offers a solid brass surface bolt under SKU DLY-410309 if you want a third brass option.

Step up to the Ives SB360 in the 12 inch length, a heavy-duty steel surface bolt with a 1-1/4 inch throw. Double the body length of the Deltana 6SBCS, which is a 6 inch solid brass bolt, so it spans further down the leaf when the strike point sits away from where you can mount. If the reach is fine but you need a deeper throw into the head or threshold, the Ives SB1600 gives a 3-1/2 inch throw in heavy duty steel.

Solid brass, both the substrate and the material of record. That matters on an exterior door or a coastal job where a plated steel bolt will rust out at the screw heads. Brass also means it stays serviceable outdoors in a finish like Oil Rubbed Bronze or PVD Polished Brass. If you want steel instead, the Ives SB1600 and SB360 are heavy duty steel surface bolts.

The mounting screws sit hidden behind the bolt assembly rather than exposed across the face of the plate. Two reasons buyers specify it: it looks cleaner on a visible door face, and there are no screw heads sitting out in the open for someone to back out from the secure side. If exposed fasteners don't bother you, a standard surface bolt like the Emtek 8511 or the Delaney solid brass bolt does the same job.

Nine: Polished Brass, PVD Polished Brass, Antique Brass, Polished Chrome, Brushed Chrome, Brushed Nickel, Antique Nickel, Oil Rubbed Bronze, and Paint Black. If you're matching a fleet of doors, PVD Polished Brass is the one to pick when the bolt is going somewhere it gets handled or sees weather, since the PVD coating holds its color where plain polished brass will patina.

A surface bolt needs something for the rod to drop into. Into a wood jamb or threshold you can drill and use a strike; on a metal frame or a tile floor you'll want a floor or jamb strike sized to the bolt rod. The 6SBCS is sold each, one bolt per unit, so plan a bolt for the top and one for the bottom if you're pinning an inactive leaf top and bottom.

Treat it as a new install, not a swap. The Emtek 8511 is also a 6 inch solid brass surface bolt, so it's the closest equivalent by size and material, but screw spacing between brands isn't interchangeable and the 6SBCS hides its fasteners rather than exposing them. Since everything mounts on the face of the door, you're drilling pilot holes either way. Match the finish and length, and expect to plug the old holes.

Material and build intent. The Deltana 6SBCS is solid brass in a 6 inch length, offered in finishes including Oil Rubbed Bronze, Polished Chrome and Antique Brass, so it is chosen where the bolt is seen. The Ives SB360 is a heavy-duty steel surface bolt with a 1-1/4 inch throw in a 12 inch length and is fire rated - a longer body and a steel bar for openings where the bolt is doing work rather than being looked at. The Ives SB1600 is the same family of thinking in steel with a 3-1/2 inch throw.

The Delaney BV7600 is a decorative solid brass surface bolt, built for openings where the bolt is part of the door's look rather than just hardware on it. The Deltana 6SBCS takes the opposite approach to appearance - solid brass with concealed screws, a contemporary treatment that hides the fastener heads instead of adding ornament. Delaney also lists a plain solid brass surface bolt under 410309 if you want the same brass body without the decorative styling.

Not automatically. Both are surface-mounted bolts, so both fasten to the face of the leaf without mortising, and either can suit the same inactive leaf in principle. But the Deltana 6SBCS is a 6 inch solid brass bolt with concealed screws, while the Trimco 4800 is a series rather than a single size - confirm the 4800 length and strike arrangement you are ordering matches the mounting run and strike point already prepped in the door before you treat one as a drop-in for the other.

The Ives heavy duty steel line covers the widest spread of commercial conditions: the SB1600 with a 3-1/2 inch throw and the SB360 at 12 inch length with a 1-1/4 inch throw are both heavy duty and fire rated, and the SB1630 adds keyed security with a 3-hour UL listing for openings that need the bolt secured. The Deltana 6SBCS is classified for commercial use as a solid brass 6 inch bolt and fits the finished, front-of-house openings in the same building, with nine finishes including Brushed Nickel, Polished Brass and Paint Black to match the rest of the trim.

Among these, the Ives SB1600 throws 3-1/2 inches, the deepest of the set, in heavy duty steel with a fire rating. Next is the Ives SB360 at 1-1/4 inches, and the Ives SB1630 and SB1640 both throw 1 inch. Throw depth is what determines how far the bolt engages the head, floor or threshold strike, so if the frame prep or the gap at the opening demands more engagement, the SB1600 is the one that reaches. The Deltana 6SBCS is specified by its 6 inch body length in solid brass.

Commercial. It's built as a heavy duty solid brass bolt, so it holds up in multi-family corridors, hospitality, and light institutional work as well as high-end residential. For a heavy-traffic institutional opening where the finish is not part of the spec, the Trimco 4800 Series and the ABH HD1805 are the utilitarian alternatives.