International Door Closers FB-1202 Flush Bolt, Positive "U" Joint Actuator with 5/8" Throw, 1/8" Offset with 7/8" Backset, Square End, With Guide

That's what the FB-1202 is built for. It has a 7/8 inch bolt backset and a 15/16 inch by 4-1/4 inch radius face, the narrow proportions that fit an aluminum stile rather than a wide wood or hollow metal door edge. Two of the three paint finishes point the same way: AL baked satin aluminum and DU baked storefront bronze, both matched to common storefront framing colors. If you're working a wood pair instead, a wider face bolt like the Delaney 6 inch square end solid brass flush bolt suits that edge better.

The bolt throws 5/8 inch off a positive U joint actuator. That means you need at least 5/8 inch of usable depth in the strike hole above or below, plus the guide clearance. The tip is a square nylon tip with beveled corners and it drops into a 1/2 inch square hole, so the strike prep is a square hole, not the round hole a rod-style bolt uses. If your existing prep is round, you're re-drilling.

The FB-1200 Series offsets are 1/8 inch, 3/16 inch and 1/4 inch, all on a 7/8 inch backset. The FB-1202 is the 1/8 inch offset version. The offset is the step between the face of the bolt and the bolt centerline, so it has to match how far the door stile sits back from the header or threshold strike point on your specific storefront. Measure that gap on the door before you pick, because a mismatched offset binds the tip against the edge of the strike hole instead of dropping cleanly.

Manual. The FB-1202 works off a positive U joint actuator that you throw and retract by hand at the bolt itself, so the inactive leaf stays bolted until someone goes to it and releases it. If you need the inactive leaf to release on its own when the active door swings, that is an automatic flush bolt, and the ABH 1860P/1862P automatic pair or the Ives FB41 automatic set for wood doors do that job instead. Key-controlled release is a third route, covered by the Adams Rite 1870 Series cylinder operated flushbolt.

For a pair where one leaf stays put most of the time, yes. The FB-1202 mortises into the edge of the inactive leaf and drops a 5/8 inch bolt into the header or threshold, so that leaf becomes the strike for the active door and you skip a center mullion. What it does not do is provide egress from the inactive leaf, since it has to be released by hand at the bolt. On an opening where both leaves need to open freely under exit conditions, look at an automatic or two-point flush bolt such as the Adams Rite MS2180 Series auto-release two-point flushbolt.

Only if the old face was the same size. The FB-1202 face is 15/16 by 4-1/4 inches, which is shorter than the 6 and 7 inch faces on bolts like the Orca Hardware 6 inch flush bolt or the Delaney 7 inch mortise flush bolt, so swapping from one of those leaves exposed mortise above and below the new plate. The other two things to check before you commit are the 7/8 inch backset and the 1/2 inch square strike hole. Round strike holes and deeper backsets both mean new prep, not a straight swap.

For a fire rated pair, look at the ABH 1854 manual flush bolt set with fire bolt for metal doors, the ABH 1858 universal bottom fire bolt, or the ABH 1860P/1862P automatic flush bolt pair, which is fire rated 3-hour with a thermal lock. On wood doors, the Ives FB41 automatic flush bolt set carries a 90 minute fire rating and the Ives FB42 top automatic flush bolt for wood doors includes an auxiliary fire latch.

The Trimco 3999SE is a 6 inch corner mount flushbolt with a square end, which matches the square end format of the FB-1202. The FB-1202 uses a 15/16 inch by 4-1/4 inch face with a 7/8 inch bolt backset, so confirm the mortise pocket and backset in the door stile before swapping, since the Trimco is a 6 inch corner mount design.

The FB-1202 is a manual bolt thrown at the face with a "U" joint actuator and has no cylinder. For 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. Pick the 1877 if the pair is wood.

The FB-1202 rod length suits a 12 inch centerline of face installation. The Ives FB457 is a manual flush bolt with a 12 inch rod length for metal doors, which is the same rod dimension in a metal door application. Confirm the face size against the existing mortise, since the FB-1202 face is 15/16 inch by 4-1/4 inch.

The rod is cut for a 12 inch centerline of face installation, meaning the bolt face centers 12 inches from the end of the door. If your job calls for the bolt higher up the stile or lower toward the threshold, the FB-1202 is not the one to order. For a metal door pair where you want a longer reach, the Ives FB457 is a manual flush bolt with a 12 inch rod.

Two finishes ship on the FB-1202: AL baked satin aluminum paint and DU baked storefront bronze paint. Both are baked paint rather than plating, so they hold up on an exterior entrance and match the standard clear anodized and dark bronze storefront framing already on most commercial fronts. There's no polished or brass option in this bolt, so if the pair has brass hardware elsewhere, a solid brass bolt like the Delaney 6 inch square end is the closer match.

Both, in different places. The bolt face is a 15/16 inch by 4-1/4 inch radius face, so the mortise in the door edge is routed with rounded corners the way a router naturally cuts, no corner chiseling. The end that engages the strike is a square nylon tip with beveled corners for a 1/2 inch square hole. If your existing bolts have a square-cornered face plate, the Trimco 3999SE is a 6 inch corner mount square end flushbolt and the Trimco 3999 is the rounded end version of the same.

Yes, if you're bolting the inactive leaf at both the header and the threshold, that's two bolts. Both throw 5/8 inch and both need the matching 1/2 inch square strike hole prepped, one in the frame head and one in the threshold or floor. Standardizing on a single offset across a building simplifies the parts bin later, and the FB-1202 is the 1/8 inch offset in the FB-1200 Series, with 3/16 and 1/4 inch offsets in the same family if a particular opening needs more step.

Yes. 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 FB-1202 is a single flush bolt with a 5/8 inch throw and 7/8 inch backset, so a top and bottom application takes two of them operated separately.

The FB-1202 throws 5/8 inch from its positive "U" joint actuator. The ABH 1855S manual flush bolt single for metal doors and the Ives FB358 manual flush bolt both throw 3/4 inch, and the FB358 uses a 1/2 inch bolt diameter. Measure the existing strike depth at the head or sill before committing, since the added throw changes the strike prep.

The FB-1202 is offered in AL aluminum and DU storefront bronze painted finishes suited to storefront and commercial openings. For a decorative wood pair, the Delaney 4108 is a 6 inch square end solid brass flush bolt, and Emtek also offers flush bolts. Both are aimed at the wood door application rather than an aluminum storefront stile.

The Delaney 4101 is a 7 inch slide type mortise in flush bolt and the Delaney 4363 is a 7 inch mortise extension in flush bolt, both mortised into the edge of the door leaf with a longer 7 inch face. The FB-1202 uses a 15/16 inch by 4-1/4 inch face with a positive "U" joint actuator and a 7/8 inch backset, so the pocket routed for a 7 inch slide bolt will not accept it without a new prep.

No. The Trimco 3999SE and Trimco 3999 are 6 inch corner mount flushbolts, and the Orca 86SQ is a 6 inch flush bolt with radius corners. The FB-1202 face measures 15/16 inch by 4-1/4 inch, so a 6 inch face will not sit in the same cutout. Treat those as a new prep rather than a swap into existing FB-1202 holes.

The guide is included on the FB-1202. That's the piece that holds the rod in line as it runs up or down the stile, and it's what keeps the square tip landing square in the 1/2 inch hole over thousands of cycles. Some flush bolts in this family are sold without it, so on a rebuild where you're reusing the existing guide, note that you'll have a spare.

The ABH 1858 is a universal bottom fire bolt with manual operation, and the ABH 1855S is a manual flush bolt single for metal doors with a 3/4 inch throw, both sold as a single bolt rather than a pair. The FB-1202 is likewise a single manual bolt with a 5/8 inch throw and a 7/8 inch backset.