Deltana FPGM42 42" Modern Offset Surface Bolt with Offset, Heavy Duty, Solid Brass

A 42 inch bolt like the Deltana FPGM42 is meant for the inactive leaf of a pair, or for a tall out-swinging door where you want the throw bar to reach well up the stile. It surface mounts to the face of the door and shoots into a strike at the head or the sill, holding that leaf fixed so the active leaf has something solid to latch against. Deltana's modern offset bolts are made for outside opening doors, giving extra security when the other locks are not in use.

The offset steps the throw bar out from the mounting plate so the bolt can clear a raised panel, a stop, or a rabbeted edge and still land square in the strike. Straight surface bolts need a flat run from the plate to the strike point; the FPGM42 is the offset version, so it works where the door face and the strike point are not in the same plane. If your door face is flat all the way to the head or sill, you do not need the offset.

The Deltana FPGM42 is a 42 inch solid brass modern offset surface bolt in a surface mounting method. For an opening that has to carry a fire rating, the Ives SB1640 is a fire rated brass surface bolt with a 1 inch throw, and the Ives SB1600 is a fire rated heavy duty steel surface bolt with a 3-1/2 inch throw. The Ives SB1630 carries a 3-hour UL listed rating with a 1 inch throw and keyed security. The Deltana is brass with an offset, so pick between them on whether the opening needs the fire rating or the offset geometry and the 42 inch length.

The Deltana FPGM42 is a manually thrown offset surface bolt with no keying. When the door needs the bolt secured rather than just thrown, the Ives SB1630 is a heavy duty steel locking surface bolt with a 1 inch throw and keyed security, and the ABH HD1805 is a heavy duty surface bolt with an auto-locking 3/4 inch stainless steel bar. The Deltana remains the brass, 42 inch option where the bolt is thrown by hand from inside.

Solid brass, both the material and the substrate. That matters for an exterior out-swinging door, where a plated steel bolt will eventually rust at the rod and seize in the guides. Brass throughout also means the Oil Rubbed Bronze finish wears through to more brass rather than to bare steel.

Four: Oil Rubbed Bronze, Brushed Nickel, Paint Black, and Brushed Chrome. If you are matching a fleet of openings, Brushed Nickel and Brushed Chrome read differently side by side (nickel is warmer), so pull the finish off the hinges or the existing bolt rather than off the lever, which is often a different vendor.

Two is the normal commercial install, one at the head and one at the sill, so the inactive leaf is pinned top and bottom and cannot flex under load. The FPGM42's 42 inch length lets a single bolt mounted at hand height reach the head, which is how a lot of tall out-swinging doors get done, but a bottom bolt is still what stops the leaf from being kicked in at the base. The 42 inch bolt is sold each, so order the quantity you need per leaf.

Reach, and where you operate it from. A short bolt like the Emtek 8511 solid brass surface bolt is 6 inches, so it mounts right at the head or the sill and you have to reach up or bend down to work it. The Deltana FPGM42 runs 42 inches, letting you mount the operating end at a comfortable height and still throw into a strike near the top of the door. For a standard height interior door where the bolt sits at the jamb line, the short one is less hardware on the face; for a tall or out-swinging exterior door, the long one is what gets used.

Deltana's modern offset bolts are made for outside opening doors, which is where the offset geometry and the surface mounting are aimed. On an in-swing you are usually bolting into the head or the floor from the interior face, and the stop location changes what clears. Check the strike point on your opening against the offset before committing, because an offset that is stepping around a stop you do not have will hold the bolt off the strike.

The Deltana FPGM42 is a solid brass surface bolt rated commercial. Where a steel body is preferred on the opening, the Ives SB1600 is a heavy duty steel surface bolt with a 3-1/2 inch throw, the Ives SB360 is a heavy-duty steel surface bolt with a 1-1/4 inch throw in a 12 inch length, and the ABH HD1805 is a heavy duty bolt with a 3/4 inch stainless steel bar. The trade is material and throw depth against the brass finish range and the 42 inch length the Deltana gives you.

They are not the same part even though both are brass surface bolts. The Deltana FPGM42 is 42 inches with an offset; the Ives SB1640 is a fire rated brass surface bolt with a 1 inch throw. Swapping one for the other changes the length of the bar on the door face and the strike location, so the existing screw pattern and strike prep will not carry over. Treat it as a different bolt to lay out, not a straight exchange.

The Deltana FPGM42 is a solid brass modern offset surface bolt at 42 inches, offered in Oil Rubbed Bronze, Brushed Nickel, Paint Black and Brushed Chrome. On the same decorative side of the shelf, Delaney offers a Solid Brass Surface Bolt and a Decorative Solid Brass Surface Bolt, and Emtek offers the 8511 solid brass surface bolt at 6 inches. The Deltana is the one carrying the modern offset styling and the long 42 inch bar.

If the modern offset styling is not the look you want, ZenSupply carries the Delaney Decorative Solid Brass Surface Bolt and the plainer Delaney Solid Brass Surface Bolt, both brass like the Deltana. The Trimco 4800 Series is the commercial spec-grade route. Where you need steel rather than brass, the ABH HD1805 is a heavy duty bolt with an auto-locking 3/4 inch stainless steel bar, which self-locks on throw instead of relying on friction to stay put.

It is rated commercial rather than residential, and it is solid brass rather than plated, which is the practical dividing line on surface bolts. For a high traffic opening in a multi-family or institutional building where the leaf takes abuse, a steel bolt such as the Ives SB360 heavy duty steel surface bolt with a 1-1/4 inch throw is the tougher body, at the cost of the brass finish match.

The Deltana FPGM42 is model FPGM42, a 42 inch offset surface bolt in solid brass. For standardizing a run of openings under one series, the Trimco 4800 Series and the ABH HD1805 Series both cover surface bolts as a series rather than a single length, and Ives spans the SB1600, SB1630, SB1640 and SB360 bolts. Specify the Deltana where the opening wants the 42 inch brass offset bolt and one of the series lines where the same catalog number needs to repeat across many doors.