Deltana FPGM10 10" Modern Offset Surface Bolt with Offset, Heavy Duty, Solid Brass

The FPGM10 is a 10 inch surface-mounted bolt in solid brass, meant for outswinging doors where you want a second point of security while the main lock isn't in use. It's a manual bolt: you throw it by hand from the inside face of the door into a strike at the head or the sill. The offset in the bolt arm shifts the throw line away from the mounting plate, which is what lets it work on doors where the frame stop or an adjacent surface sits in the way of a straight bolt.

No. It's a secondary security device meant to work alongside the door's primary lock, thrown when the other locks aren't in use. There's no cylinder, no outside operation, and no way to release it from the opposite side, so any door needing egress control or keyed entry still needs a proper lockset. On an egress door, check that adding a manual bolt doesn't violate the code requirement for single-motion exit at your facility type.

A surface bolt like the FPGM10 mounts on the face of the door and needs no prep, so it's the retrofit answer when the inactive leaf is already hung and you can accept visible hardware. A flush bolt is mortised into the edge of the leaf and disappears, but it means machining the door and it usually can't be added in place. On a pair, the FPGM10 goes on the inactive leaf and its strike goes into the frame head or the threshold, holding that leaf fixed so the active leaf's lock has something to latch against.

They are different parts. The Ives SB1630 is a heavy duty steel locking surface bolt with keyed security, and the ABH HD1805 is a heavy duty surface bolt with an auto-locking 3/4 inch stainless steel bar. The Deltana FPGM10 is a solid brass offset surface bolt with no keying or auto-locking bar, meant to hold an inactive leaf while other locks are not in use. If the opening needs the bolt to be key controlled or to latch on its own, the SB1630 or HD1805 is the part to order, not a brass offset bolt.

Eight finishes: polished brass, unlacquered brass, antique brass, oil rubbed bronze, brushed nickel, polished chrome, brushed chrome, and paint black. If you're matching existing hardware across a building, unlacquered brass is the one that will keep darkening over time, and paint black is a coated matte rather than a metal plating, so pair those deliberately rather than by name alone.

Brass doesn't rust the way steel does, which is the practical argument for the FPGM10 on an exterior or coastal opening over a steel-bodied bolt. Both the plate and the body are brass. On the unlacquered brass version the surface will patina with exposure; on the lacquered and plated finishes the coating carries the appearance.

Not the FPGM10 - it's a manual throw bolt with no cylinder. If the bolt itself has to be key-secured, the Ives SB1630 is the keyed security surface bolt, with a 1 inch throw and a 3-hour UL listing. That's the one for a storage or utility leaf where you don't want the bolt released by anyone standing next to it.

Length is reach, not strength. The FPGM10's 10 inch body lets you mount the operating lever within hand reach while the bolt itself engages further up or down the door, which is how you bolt into a frame head above a transom or reach down past a wide bottom rail. If the strike is close to where you want to grip it, a shorter bolt does the same job in less real estate: the Emtek 8511 solid brass surface bolt is 6 inches. Measure from your intended lever position to the strike point before choosing.

The FPGM10 is a manual bolt, thrown and withdrawn by hand. If the opening is one where you need the bolt to catch and hold itself in the projected position, the ABH HD1805 is a heavy duty surface bolt with an auto-locking 3/4 inch stainless steel bar. That's the distinction to check on a door that gets slammed or sees constant traffic.

For a like-for-like solid brass bolt, Delaney's Solid Brass Surface Bolt and its Decorative Surface Bolt are the closest in material and intent, and the Emtek 8511 is a solid brass bolt in a 6 inch length. If you want steel rather than brass, the Ives SB360 comes in a 12 inch length with a 1-1/4 inch throw and the SB1600 has a 3-1/2 inch throw. The Trimco 4800 Series is the other commercial line to look at. Sort by material first, then by how far the bolt has to travel to reach your strike.

The Deltana FPGM10 is a 10 inch solid brass modern offset bolt offered in Oil Rubbed Bronze, Brushed Nickel, Paint Black, Polished Chrome, Brushed Chrome, Polished Brass, Unlacquered Brass and Antique Brass. On the decorative side, the Delaney BV7600 is a decorative solid brass surface bolt and the Delaney 410309 is a plain solid brass surface bolt; the Emtek 8511 is a 6 inch solid brass bolt for a shorter, lighter look. All four are brass rather than the steel of the Ives and ABH bolts.

For a steel bolt on a high traffic opening, the Ives SB1600 and SB1630 are both heavy duty steel surface bolts, the Ives SB360 is a heavy-duty steel bolt in a 12 inch length that runs longer than the FPGM10's 10 inch, and the ABH HD1805 is a heavy duty bolt with a 3/4 inch stainless steel bar. The Deltana FPGM10 is heavy duty in solid brass, so the trade is brass finish range against steel construction.

The comparable series are the Trimco 4800 Series surface bolts, the ABH HD1805 Series, the Emtek Surface Bolts series, and Delaney's Solid Brass Surface Bolt and Decorative Surface Bolt series. The Deltana FPGM10 is the 10 inch modern offset model in solid brass with eight finishes, so a facility standardizing on one look can hold the finish constant across openings and vary only length.