Orca Hardware 6" Flush Bolt With Radius Corners

Yes, for a standard pair you order two of the 86SQ 6 inch flush bolts, one mortised into the top edge of the inactive leaf and one into the bottom edge. Each is sold as a single bolt, not a pair, so a two point inactive leaf takes two pieces plus the strike prep at the head and the floor or threshold.

It is the shape of the faceplate that gets mortised into the door edge. The Orca 86SQ has radius (rounded) corners, so it drops into a routed pocket cut with a standard router bit without squaring the corners by hand. A square end bolt like the Trimco 3999SE or the Delaney 6 inch square end brass bolt needs the corners chiseled out. Match whichever shape is already cut in the door when you are replacing an existing bolt.

Specify a fire rated flush bolt for that opening rather than the Orca TH-86SQ. The ABH 1854 series manual flush bolt set includes a fire bolt for metal doors, the ABH 1860P/1862P automatic flush bolt pair is fire rated 3 hour with a thermal lock, and on the Ives side the FB41 automatic flush bolt set for wood doors carries a 90 minute fire rating. The Ives FB42 top automatic flush bolt for wood doors adds an auxiliary fire latch.

The Trimco 3999 is the nearest match: a 6 inch corner mount flushbolt with a rounded end, the same length and the same rounded end profile as the Orca TH-86SQ 6 inch flush bolt with radius corners. If the opening calls for a square end at the same length instead, the Trimco 3999SE is the 6 inch corner mount square end version. The Orca part is brass and comes in Black and Satin Nickel.

No, the Orca TH-86SQ is a hand operated flush bolt with no cylinder. For key control at the inactive leaf, Adams Rite makes the 1870 series cylinder-operated flushbolt with key control, and the 1877 cylinder-operated flushbolt for paired wood doors. Adams Rite also offers two-point flushbolts - the MS1880/MS1881 with an interlock mechanism and the MS2180 auto-release two-point with the Smartlock mechanism.

It is catalogued as commercial grade, though the 86SQ product sheet describes the application as residential. Practically, a manual brass flush bolt of this style suits apartment and light commercial pairs, storage rooms and back-of-house double doors. For heavy traffic metal door pairs, an ABH 1855 series manual bolt with a 3/4 inch throw is built for metal doors.

The Orca TH-86SQ is a manual 6 inch radius corner flush bolt - someone throws and retracts the bolt by hand at the inactive leaf. Automatic types retract when the active leaf closes: the ABH 1860P/1862P is an automatic flush bolt pair, the Ives FB41 is an automatic flush bolt set for wood doors with a 3/4 inch throw, and the Ives FB42 is the top automatic flush bolt for wood doors. Choose automatic where the inactive leaf must release without a hand at the bolt.

The IDC FB-1202 is a square end flush bolt with a positive U joint actuator, 5/8 inch throw, 1/8 inch offset and 7/8 inch backset, supplied with a guide. The Orca TH-86SQ is the 6 inch radius corner face plate style in brass, offered in Black and Satin Nickel. Pick the FB-1202 where the square end and that specific 7/8 inch backset prep are called out, and the Orca where the rounded corner face plate matches the existing doors.

Yes. Delaney offers a 7 inch slide type mortise in flush bolt (4101) and a 7 inch mortise extension flush bolt (4363) where more face plate length is wanted. For metal doors, the Ives FB457 manual flush bolt is supplied with a 12 inch rod length. The Orca TH-86SQ itself is the 6 inch radius corner size.