Rockwood 556WS Lever Extension Flush Bolt Windstorm

Yes. The 556WS is listed for both in-swing and out-swing paired openings as part of a UL certified windstorm assembly from ASSA ABLOY. That assembly pairs the bolt with doors from Ceco Door, Curries or Fleming and latching hardware from Corbin Russwin, SARGENT or Yale. If your opening uses doors or locks outside that group, the windstorm listing for the assembly does not carry over.

Machine the door edge for a mortise case of 1 x 5-1/4 x 1-3/8 inches, with a face plate of 1 x 6-3/4 x 1/8 inches. The rod runs 12 inches measured from the center of the face to the bolt end retracted, and the rod backset is 3/4 inch.

The bolt throws 3/4 inch and the matching strike opening is 15/16 by 2-1/4 inches. If the strike already in your head frame or threshold is smaller than that or is cut for a shorter throw, prep for the 556WS strike instead of reusing what is there.

Yes. The windstorm version was tested to ASTM E330, E1886 and E1996 along with TAS 201, 202 and 203, and the assembly is approved for use. Those are the structural load, cyclic pressure and large missile impact protocols cited in high velocity hurricane zone work.

No. The 556WS windstorm bolt belongs to a certified assembly built around hollow metal doors from Ceco, Curries or Fleming. For paired wood doors, use a flush bolt made for that substrate, such as the Ives FB41 automatic set for wood doors or the Ives FB42 top automatic bolt with auxiliary fire latch.

The Ives FB457 is the nearest straight equivalent: it is a manual flush bolt with a 12 inch rod length for metal doors, matching the 556WS rod length of 12 inches measured from center of face to bolt end retracted. The 556WS itself carries a 3/4 inch bolt throw, 3/4 inch rod backset, a 1 inch x 6-3/4 inch x 1/8 inch face plate and a 1 inch x 5-1/4 inch x 1-3/8 inch mortise case. Confirm the door mortise pocket matches that case size before swapping, since face plate and case dimensions differ between makers.

No. The 556WS is a manually operated lever extension flush bolt; someone has to throw and retract it at the door. For automatic release on an inactive leaf, use an automatic set instead: the Ives FB41 is an automatic flush bolt set for wood doors with 3/4 inch throw, the Ives FB42 is a top automatic flush bolt for wood doors with an auxiliary fire latch, and the ABH 1860P/1862P is an automatic flush bolt pair. The 556WS suits openings where the inactive leaf is meant to stay bolted until deliberately released.

Treat them as different products for that purpose. The 556WS is part of a UL certified assembly from ASSA ABLOY, listed for in-swing or out-swing paired applications with doors from Ceco Door, Curries or Fleming and latching hardware from Corbin Russwin, SARGENT or Yale, and tested to ASTM E330, E1886, E1996 and TAS 201, 202 and 203. The comparable bolts are described by their own ratings only - for example the Ives FB358 and Ives FB457 carry fire ratings, and the ABH 1854 set includes a fire bolt - which is a separate qualification from windstorm assembly testing. If the drawing calls out a windstorm assembly, stay with the bolt named in that assembly.

It is a lever extension flush bolt, operated by hand with a lever on the face plate. Nothing releases it when the active leaf opens. If you need the inactive leaf to unlatch on its own, look at an automatic set such as the Ives FB41 for wood doors or the ABH 1860P/1862P automatic pair.

It is built to ANSI A156.16, type L04251. That is the auxiliary hardware standard a spec writer cites for flush bolts, so it satisfies a drawing calling for an A156.16 L04251 flush bolt.

For a standard paired opening with no impact requirement, a plain manual flush bolt does the same job. The Ives FB457 with a 12 inch rod for metal doors matches the 556WS rod length, and the ABH 1855S is a single manual bolt with the same 3/4 inch throw. Where the inactive leaf needs to be key controlled from outside, the Adams Rite 1870 is a cylinder operated flushbolt.

The 556WS is thrown by a lever at the bolt, with no cylinder involved. If the specification calls for key control over the inactive leaf, the Adams Rite 1870 is a cylinder-operated flushbolt with key control, and the Adams Rite 1877 is a cylinder-operated flushbolt for paired wood doors. Those change the door prep, since you add a cylinder pocket the 556WS mortise case of 1 inch x 5-1/4 inch x 1-3/8 inch does not account for.

The 556WS is a commercial flush bolt built in brass and stainless steel and certified to ANSI A156.16, L04251. The Delaney 6 inch square end solid brass flush bolt, the Delaney 7 inch slide type mortise flush bolt, the Delaney 7 inch mortise extension flush bolt and the Emtek flush bolts are lighter decorative bolts aimed at finer interior and residential pairs. They are shorter bodies with different prep and do not carry the 556WS windstorm assembly listing, so they are not a drop-in for a rated commercial opening.

The 556WS throws 3/4 inch on a 3/4 inch rod backset. The Ives FB358 manual flush bolt and the ABH 1855S manual flush bolt single for metal doors also list a 3/4 inch throw, as does the Ives FB41 automatic set for wood doors. The International Door Closers FB-1202 is the outlier - it lists a 5/8 inch throw with a 1/8 inch offset and a 7/8 inch backset, so its bolt engagement depth and rod centerline both differ from the 556WS and the strike prep will not line up.

Eight #8-32 by 1/4 inch stainless steel flat head machine screws ship with it. Machine screws mean the door and frame need to be tapped, which suits the hollow metal openings this windstorm assembly is listed for. Nothing else is included, so order the strike prep and any threshold work separately.

Satin chrome, 626, is the finish offered. The bolt itself is brass and stainless steel with a 12 inch stainless rod, which is what you want on an exterior storm rated pair.

It is commercial grade hardware, the kind Rockwood builds for institutional buildings, offices, retail, education, detention, sports facilities and hospitality. Built to ANSI A156.16 L04251 in brass and stainless, it stands up to the traffic on an inactive leaf in those buildings.

The 556WS is sold as the 556WS lever extension flush bolt in 626 satin chrome, supplied with 8 each #8-32 x 1/4 inch flat head machine screws in stainless steel. If you prefer to buy a top and bottom arrangement together, the ABH 1854 is a manual flush bolt set with fire bolt for metal doors and the ABH 1860P/1862P is an automatic pair; the ABH 1858 is a universal bottom fire bolt for manual operation if you only need the bottom position. Check that whichever you choose carries the ratings your opening is specified to.