Don-Jo SMEST-158 Extended Lip Mortise Strike – Schlage Compatible, 13 Ga. Non-Ferrous, Three Finish Options

Don-Jo Manufacturing's SMEST-158 is a heavy-duty extended lip mortise strike engineered for commercial and institutional door frames where a standard ASA strike simply won't reach. Built from 13 gauge (.095) non-ferrous material, this ASA strike measures 1-5/8" wide × 4-7/8" tall, with the 1-5/8" lip dimension measured from the center of the screw hole to the end of the lip — the critical spec that determines frame setback compatibility. The SMEST-158 features two latch holes, making it the correct replacement or new-construction extended lip strike for frames prepped to accept a Schlage mortise lock bolt pattern. DoorwaysPlus carries this non-stock item in three finishes: 630 satin stainless steel (US32D), Duranodic dark bronze (Don-Jo DU), and 622 / US19 flat black — covering the most-specified commercial finish schedules from healthcare corridors to education facilities.

SMEST-158 Extended Lip Mortise Strike Features

• Extended Lip ASA Strike Geometry: The 4-7/8" face height and 1-5/8" lip (center-of-screw to lip end) provide the reach needed for offset or thick-frame conditions that a standard ASA strike cannot accommodate.
• 13 Gauge (.095) Construction: Heavy-gauge non-ferrous material delivers the rigidity specifiers require on commercial mortise lockset applications without the corrosion concerns of ferrous alternatives.
• Schlage Mortise Bolt Compatibility: The two-latch-hole layout is cut to match the Schlage mortise lock bolt pattern, making the SMEST-158 a direct fit or like-for-like replacement on Schlage-prepped hollow metal and wood frames.
• Three Commercial Finish Options: Available in 630 satin stainless (US32D) for high-traffic stainless schedules, Duranodic dark bronze (DU) for contemporary or institutional palettes, and 622 / US19 flat black for modern or specialty finish schedules.
• Non-Handed Design: A single SKU works regardless of door handing, simplifying ordering and field stock management.
• Convenient Shelf Pack: Sold in shelf packs of 5, supporting both individual door projects and multi-opening specifications.

Technical Details

How to Specify / Order

Select the SMEST-158 paired with your required finish designation — 630, DU, or 622 — when submitting your order. This item is non-stock and ships direct from Don-Jo Manufacturing; allow 3–10 business days lead time. For multi-opening projects, the shelf pack of 5 simplifies procurement on large schedules.