Baldwin 6399 Extended ASA Strike Latch and Deadbolt

It is an extended lip strike that serves both a latch and a deadbolt in one plate, cut to the ASA (1-1/8 x 2-3/4 inch) frame prep. The long lip is there for openings where the frame sits proud of the jamb face or the door is set back, so a standard lip would leave the bolt scraping instead of guiding into the pocket. Baldwin calls it out for locks installed on special door and frame conditions.

Those two numbers are lip-to-center dimensions, measured from the centerline of the strike opening out to the edge of the lip. Measure from the center of your existing strike pocket to where the lip has to end past the jamb stop or trim, then pick the size that reaches it. Too short and the bolt hangs up on the frame edge; too long and the lip stands out past the casing.

It suits locks with 1-1/2 inch, 2 inch, and 2-1/2 inch backsets, which is the range Baldwin Estate mortise-style trim runs in. Confirm the backset stamped on your lock body before ordering, since the strike has to line up with both the latch and the deadbolt the lock throws.

Handing matters. Because the lip only extends to one side, it comes as Left Hand Reverse or Right Hand Reverse. Stand outside the door: if it swings toward you and the hinges are on your left, it's left hand reverse. Ordering the wrong hand puts the lip on the wrong face of the jamb and the strike is unusable.

No. The 6399 is a single plate prepped for both the latch and the deadbolt, so one strike per opening covers both bolts. That also keeps the frame prep to one mortise instead of two separate cutouts.

Baldwin classifies it as residential hardware, Estate Series. It fits well on high-end homes, condo entries, and multi-family unit doors where the look matters; for a commercial fire-rated opening you want a strike carrying an ANSI/BHMA Grade 1 commercial lockset instead.

If the frame is already prepped for a standard ASA strike, the 6399 uses that same 1-1/8 by 2-3/4 inch opening, so the mortise itself carries over. What changes is the lip: the extended lip wraps further onto the jamb face, so you may need to relieve a little more of the stop or trim on the lip side and the screw holes should be checked against the old plate.

The strike is brass. That is what lets it carry Baldwin's brass and PVD finishes and wear in alongside the rest of an Estate Series opening rather than flaking like a plated steel plate.